Conservation Of Plants And Animals Worksheet

Objective Type Questions

1. Fill in the blanks with suitable words.
   (a) ………………… is the conversion of fertile land into deserts.
   (b) A group of population which are capable of interbreeding is called a …………………
   (c) ………………… was launched by the Government to protect the tigers in the country.
   (d) ………………… is the restocking of destroyed forests by planting new trees.
   
   
2. Match the terms in column A with appropriate terms in column B.
   
    
3. Classify the below animals as endangered, extinct, or endemic species.
   
   
   Multiple Choice Questions
   
   
4. Several factories are built by cutting down trees and clearing of forests. What will be its likely effect on the nature?
   (a) decrease in the number of wildlife
   (b) sudden boost in the plant growth
   (c) availability of more food for wildlife
   (d) increase in the percentage of land occupied with trees
   
   
5. The below chart lists some events.
   
   Which of these events will lead to deforestation?
   (a) A and C
   (b) A and D
   (c) B and D
   (d) C and D
   
   
6. The image shows the effect of deforestation on water cycle. What is likely to happen if deforestation continues?
   
   (a) Increase in oxygen level
   (b) Decrease in temperature
   (c) Increase in annual rainfall
   (d) Decrease in the level of groundwater
   
   
7. Bori Sanctuary and Satpura National Park are present in the Pachmarhi Biosphere Reserve. How do these three areas help in protecting the plants and animals?
   (a) These large areas provide artificial habitat to wildlife.
   (b) These large areas conserve organisms and their habitats.
   (c) These large areas control the number of wildlife by preventing natural breeding.
   (d) These large areas prevent the interaction of organisms with wildlife to keep them safe.
   
   
8. Kailash went on a trip to a biosphere reserve called Panna in Madhya Pradesh and Keoladeo National Park in Rajasthan. Which common activity is likely to be observed in both the protective areas?
   (a) They provide protective environment to the fauna only.
   (b) They provide shelter to humans as well as wildlife.
   (c) They allow human activities for interaction with the wild animals.
   (d) They do not interfere with the natural environment of the wildlife.
   
   
9. The image shows some plants of a particular area. Which term can be commonly used for all the plants?
   
   (a) Flora
   (b) Fauna
   (c) Wild trees
   (d) Aquatic plants
   
   
10. Species of deer are commonly distributed in the states of northern and central India. However, brow-antlered deer also called Sangai is found only in Keibul Lamjao Natural Park situated in Manipur. What could be the reason for this?
    (a) Sangai is a native species.
    (b) Sangai is an exotic species.
    (c) Sangai is an endemic species.
    (d) Sangai is a diverse species.
    
    
11. In a school, class 7 students went to a trip to Arunachal Pradesh while class 8 students went on a trip to Meghalaya. They observed different plants on these trips as shown.
    
    What is the likely reason that class 7 and class 8 students did not observe the same plants at different locations?
    (a) Both the plant species show migration
    (b) Both the plant species are exclusively found in a particular habitat
    (c) Both the plant species depend on different types of herbivorous animals
    (d) Both the plant species depend on different components for preparing food
    
    
12. Jim Corbett National Park of India protects the endangered Bengal tiger. What likely measure have they adopted to protect this species of tiger?
    (a) Controlled hunting of Bengal tiger
    (b) Capturing tiger in a small area for better observation
    (c) Increase the count of tigers by different methods of breeding
    (d) Bring prey animals from neighbouring regions to increase the tiger count
    
    
13. What information is likely to be obtained from the Red Data Book?
    (a) Record of all endangered species
    (b) Information of all endemic species
    (c) Categorisation of plants and animals according to species
    (d) Information of all plant and animal species in the country
    
    
14. Which of the following is likely to reduce deforestation?
    (a) Limiting the use of paper
    (b) Using only fine quality paper for work
    (c) Throwing old newspapers in dustbins
    (d) Burying used and wastepaper instead of burning it
    
    
15. A group of students decided to grow new plants on a barren land. They planted the saplings, added manure to the soil and watered the plants daily. After three months, the students observed the following changes:
    
    What can be concluded from these observations?
    (a) Reforestation promotes soil erosion.
    (b) Reforestation allows growth of the plants.
    (c) Reforestation increases the amount of soil.
    (d) Reforestation helps reduce the impact of deforestation.
    
    Subjective Questions
    
    
16. How is decrease in the number of trees linked with the shortage of water?
    
    
17. Regions with more trees experience less soil erosion. How do trees help to reduce soil erosion?
    
    
18. The given chart lists some organisms. Classify them into flora and fauna respectively.
    
    
    
19. Why are you advised to sell old newspapers and books to the Kabadiwala?
    
    Case-Based Questions
    
    
20. Nisha set up an experiment to study the effect of deforestation. She collected soil from a forest area with trees and from a barren land with no trees. She added soil from the forest area in Pot 1 and soil from the barren land in Pot 2. She planted a hibiscus plant in both the pots. After 1 month, Nisha observed both the pots for the growth of the plant.
    a) What would be Nisha’s observation?
    (a) Plant in pot A shows good growth while plant in pot B shows minimal growth.
    (b) Plant in pot B shows good growth while plant in pot A shows minimal growth.
    (c) Plants in both pots A and B show good growth.
    (d) Plants in both pots A and B show minimal growth.
    
    b) What is the likely reason for this observation?
    (a) Soil from barren land is less fertile.
    (b) Soil from forested land is poor in nutrients.
    (c) Soil from barren land contains more manure.
    (d) Soil from forested land contains stored food for better plant growth.
    
    c) Which one of the following changes may occur due to desertification?
    (a) Decrease in atmospheric temperature
    (b) Increase in water holding capacity of soil
    (c) Increased chances of floods
    (d) Conversion of fertile land into a desert
    
    
21. There are approximately 2500-3000 Ganges River dolphins left living in the wild. This means that the species is vulnerable and is categorised as endangered. The table shows an example of the different types of threat for the Gangetic Dolphin.
    
    a) Surface runoffs containing pesticides also threaten the survival of the Gangetic Dolphin. As per the above table, to which type does this threat belong? Explain your answer.
    
    b) Which of the following correctly defines an endangered species?
    (a) Species which no longer exists
    (b) Species whose numbers are diminishing to a level that they might face extinction
    (c) Species found exclusively in a particular area
    (d) Species which are vulnerable to endangerment shortly
    
    c) Which of the following can be classified as an endangered species?
    (a) Asiatic lion
    (b) Dodo
    (c) Dinosaur
    (d) Tasmanian tiger
    
    Assertion-Reasoning Questions
    
    Below questions consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:
    
22. Assertion (A): Biosphere reserves, national parks and wildlife sanctuaries are the protected areas for plants and animals.
    Reason (R): Above areas have different nature and habitat.
    
    
23. Assertion (A): Flying squirrel is an example of endemic fauna.
    Reason (R): Endemic species are those species that are on the verge of extinction.

Objective Type Questions

1. Fill in the blanks with suitable words.
   (a) ………………… is the conversion of fertile land into deserts.
   (b) A group of population which are capable of interbreeding is called a …………………
   (c) ………………… was launched by the Government to protect the tigers in the country.
   (d) ………………… is the restocking of destroyed forests by planting new trees.
   
   Solution:
   (a) Desertification
   (b) Species
   (c) Project Tiger
   (d) Reforestation
   
   
2. Match the terms in column A with appropriate terms in column B.
   
   
   Solution:
   (a) Sanjay Gandhi Wildlife Sanctuary – ii) Tamil Nadu
   (b) Mudumalai Wildlife Sanctuary – v) Kerala
   (c) Bharatpur Wildlife Sanctuary – iv) Haryana
   (d) Sultanpur Lake Bird Sanctuary – i) Rajasthan
   (e) Thattekad Bird Sanctuary – iii) Karnataka
    
3. Classify the below animals as endangered, extinct, or endemic species.
   
   
   Solution:
   

   Endangered species	Tiger, Barasingha
   Extinct species	Dinosaur, Dodo
   Endemic species	Bison, Flying squirrel

   
   Multiple Choice Questions
   
   
4. Several factories are built by cutting down trees and clearing of forests. What will be its likely effect on the nature?
   (a) decrease in the number of wildlife
   (b) sudden boost in the plant growth
   (c) availability of more food for wildlife
   (d) increase in the percentage of land occupied with trees
   
   Correct Option: (a) Decrease in the number of wildlife
   Solution: Cutting down trees and clearing of forests will decrease the vegetation. As a result, there will be no food available for wildlife and therefore the number of wildlife would also decrease.
   
   
5. The below chart lists some events.
   
   Which of these events will lead to deforestation?
   (a) A and C
   (b) A and D
   (c) B and D
   (d) C and D
   
   Correct Option: (c) B and D
   Solution: Trees in the forests have been cut down for procuring land for cultivation, building houses and factories, making furniture, or using wood as fuel.
   
   
6. The image shows the effect of deforestation on water cycle. What is likely to happen if deforestation continues?
   
   (a) Increase in oxygen level
   (b) Decrease in temperature
   (c) Increase in annual rainfall
   (d) Decrease in the level of groundwater
   
   Correct Option: (d) Decrease in the level of groundwater
   Solution: Deforestation leads to the depletion of water table. The trees help soil to absorb water, which percolates down and groundwater level rises. However, when trees are cut, water runs off quickly as the soil is unable to absorb the flowing water. Thus, water does not percolate down and groundwater level depletes.
   
   
7. Bori Sanctuary and Satpura National Park are present in the Pachmarhi Biosphere Reserve. How do these three areas help in protecting the plants and animals?
   (a) These large areas provide artificial habitat to wildlife.
   (b) These large areas conserve organisms and their habitats.
   (c) These large areas control the number of wildlife by preventing natural breeding.
   (d) These large areas prevent the interaction of organisms with wildlife to keep them safe.
   
   Correct Option: (b) These large areas conserve organisms and their habitats
   Solution: Protected areas called wildlife sanctuaries, national parks and biosphere reserves have been earmarked to protect our flora and fauna and their habitats.
   
   
8. Kailash went on a trip to a biosphere reserve called Panna in Madhya Pradesh and Keoladeo National Park in Rajasthan. Which common activity is likely to be observed in both the protective areas?
   (a) They provide protective environment to the fauna only.
   (b) They provide shelter to humans as well as wildlife.
   (c) They allow human activities for interaction with the wild animals.
   (d) They do not interfere with the natural environment of the wildlife.
   
   Correct Option: (d) They do not interfere with the natural environment of the wildlife.
   Solution: Wildlife sanctuaries, national parks, and biosphere reserves are designated places for protecting wild plants, animals, and natural habitats. Plantation, cultivation,
   grazing, felling trees, hunting, and poaching are prohibited in these areas.
   
   
9. The image shows some plants of a particular area. Which term can be commonly used for all the plants?
   
   (a) Flora
   (b) Fauna
   (c) Wild trees
   (d) Aquatic plants
   
   Correct Option: (a) Flora
   Solution: All the plants found in a particular area constitute the flora of that area.
   
   
10. Species of deer are commonly distributed in the states of northern and central India. However, brow-antlered deer also called Sangai is found only in Keibul Lamjao Natural Park situated in Manipur. What could be the reason for this?
    (a) Sangai is a native species.
    (b) Sangai is an exotic species.
    (c) Sangai is an endemic species.
    (d) Sangai is a diverse species.
    
    Correct Option: (c) Sangai is an endemic species.
    Solution: Endemic species are those species of plants and animals which are found exclusively in a particular area. They are not naturally found anywhere else.
    
    
11. In a school, class 7 students went to a trip to Arunachal Pradesh while class 8 students went on a trip to Meghalaya. They observed different plants on these trips as shown.
    
    What is the likely reason that class 7 and class 8 students did not observe the same plants at different locations?
    (a) Both the plant species show migration
    (b) Both the plant species are exclusively found in a particular habitat
    (c) Both the plant species depend on different types of herbivorous animals
    (d) Both the plant species depend on different components for preparing food
    
    Correct Option: (b) Both the plant species are exclusively found in a particular habitat
    Solution: Endemic species are those species of plants and animals which are found exclusively in a particular area. In India, Sapria himalayana is only found in the forests of Namdapha National Park in Arunachal Pradesh. Nepenthes khasiana, the Indian Pitcher Plant is a carnivorous plant endemic to the Khasi hills of Meghalaya.
    
    
12. Jim Corbett National Park of India protects the endangered Bengal tiger. What likely measure have they adopted to protect this species of tiger?
    (a) Controlled hunting of Bengal tiger
    (b) Capturing tiger in a small area for better observation
    (c) Increase the count of tigers by different methods of breeding
    (d) Bring prey animals from neighbouring regions to increase the tiger count
    
    Correct Option: (c) Increase the count of tigers by different methods of breeding
    Solution: Jim Corbett National Park project was launched under Indira Gandhi leadership. This project has been successful in increasing the tiger population by implementing different breeding methods. The total number of tigers has increased from 1200 to around 5000.
    
    
13. What information is likely to be obtained from the Red Data Book?
    (a) Record of all endangered species
    (b) Information of all endemic species
    (c) Categorisation of plants and animals according to species
    (d) Information of all plant and animal species in the country
    
    Correct Option: (a) Record of all endangered species
    Solution: Red Data Book is the source book which keeps a record of all the endangered animals and plants.
    
    
14. Which of the following is likely to reduce deforestation?
    (a) Limiting the use of paper
    (b) Using only fine quality paper for work
    (c) Throwing old newspapers in dustbins
    (d) Burying used and wastepaper instead of burning it
    
    Correct Option: (a) Limiting the use of paper
    Solution: We should save, reuse used paper and recycle it. In this way, we can not only save trees but also save energy and water needed for manufacturing paper.
    
    
15. A group of students decided to grow new plants on a barren land. They planted the saplings, added manure to the soil and watered the plants daily. After three months, the students observed the following changes:
    
    What can be concluded from these observations?
    (a) Reforestation promotes soil erosion.
    (b) Reforestation allows growth of the plants.
    (c) Reforestation increases the amount of soil.
    (d) Reforestation helps reduce the impact of deforestation.
    
    Correct Option: (d) Reforestation helps reduce the impact of deforestation
    Solution: Reforestation is restocking of the destroyed forests by planting new trees. Increased number of trees will help to lessen the effects of deforestation.
    
    Subjective Questions
    
    
16. How is decrease in the number of trees linked with the shortage of water?
    
    Solution:
    Deforestation results in loss of tree cover. Plants need carbon dioxide for the process of photosynthesis. Fewer trees imply less carbon dioxide is used up resulting in its increased amount in the atmosphere. This leads to global warming as carbon dioxide traps the heat rays reflected by the Earth. The increase in the temperature on the Earth disturbs the water cycle and reduces rainfall. Lack of rainfall results in shortage of water and may even cause droughts.
    
    
17. Regions with more trees experience less soil erosion. How do trees help to reduce soil erosion?
    
    Solution:
    Trees in the forests hold the topmost layer of the soil firmly by their roots. This does not allow natural forces like wind and water to carry away the topmost fertile layer of the soil easily. In this way, the tree cover in the forests prevents soil erosion. Greater the number of trees, lesser in the occurrence of soil erosion.
    
    
18. The given chart lists some organisms. Classify them into flora and fauna respectively.
    
    Solution:
    
    
    
19. Why are you advised to sell old newspapers and books to the Kabadiwala?
    
    Solution:
    Newspapers are made of mainly wood pulp, sugarcane waste, etc. Newspapers are biodegradable which can be recycled to something new and useful. The Kabadiwala collects newspapers from homes and gives it to the authorities which recycle paper. Therefore, we are advised to sell newspapers and old books to the Kabadiwala.
    
    Case-Based Questions
    
    
20. Nisha set up an experiment to study the effect of deforestation. She collected soil from a forest area with trees and from a barren land with no trees. She added soil from the forest area in Pot 1 and soil from the barren land in Pot 2. She planted a hibiscus plant in both the pots. After 1 month, Nisha observed both the pots for the growth of the plant.
    a) What would be Nisha’s observation?
    (a) Plant in pot A shows good growth while plant in pot B shows minimal growth.
    (b) Plant in pot B shows good growth while plant in pot A shows minimal growth.
    (c) Plants in both pots A and B show good growth.
    (d) Plants in both pots A and B show minimal growth.
    
    b) What is the likely reason for this observation?
    (a) Soil from barren land is less fertile.
    (b) Soil from forested land is poor in nutrients.
    (c) Soil from barren land contains more manure.
    (d) Soil from forested land contains stored food for better plant growth.
    
    c) Which one of the following changes may occur due to desertification?
    (a) Decrease in atmospheric temperature
    (b) Increase in water holding capacity of soil
    (c) Increased chances of floods
    (d) Conversion of fertile land into a desert
    
    Solution:
    a) Correct option: (a) Plant in pot A shows good growth while plant in pot B shows minimal growth.
    Solution: Pot A contained soil from a forested area while pot B contained soil from a barren land. The soil in a forested area is fertile and supports good growth of plants. The soil from a barren land is less fertile and does not support plant growth.
    
    b) Correct option: (a) Soil from barren land is less fertile
    Solution: Due to the absence of trees, the soil in a barren land contains less humus as it has mostly lost its top fertile layer. Absence of humus makes the soil less fertile. As a result, the soil from a barren land does not support plant growth.
    
    c) Correct option: (d) Conversion of fertile land into a desert
    Solution: Desertification is the process of degradation in which fertile land is converted into a desert due to deforestation.
    
    
21. There are approximately 2500-3000 Ganges River dolphins left living in the wild. This means that the species is vulnerable and is categorised as endangered. The table shows an example of the different types of threat for the Gangetic Dolphin.
    
    a) Surface runoffs containing pesticides also threaten the survival of the Gangetic Dolphin. As per the above table, to which type does this threat belong? Explain your answer.
    
    b) Which of the following correctly defines an endangered species?
    (a) Species which no longer exists
    (b) Species whose numbers are diminishing to a level that they might face extinction
    (c) Species found exclusively in a particular area
    (d) Species which are vulnerable to endangerment shortly
    
    c) Which of the following can be classified as an endangered species?
    (a) Asiatic lion
    (b) Dodo
    (c) Dinosaur
    (d) Tasmanian tiger
    
    Solution:
    a) Surface runoffs containing pesticides contain harmful chemicals which pollute the water bodies and cause water pollution. Thus, surface runoffs containing pesticides can be classified as a water pollution type of a threat to Gangetic Dolphins.
    
    b) Correct Option: (b) Species whose numbers are diminishing to a level that they might face extinction
    Solution: Species which no longer exists is an extinct species. Species found exclusively in a particular area is called an endemic species. Species which are vulnerable to endangerment shortly are called threatened species.
    
    c) Correct Option: (a) Asiatic lion
    Solution: Dodo, dinosaur and Tasmanian tiger are extinct species.
    
    Assertion-Reasoning Questions
    
    Below questions consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:
    
22. Assertion (A): Biosphere reserves, national parks and wildlife sanctuaries are the protected areas for plants and animals.
    Reason (R): Above areas have different nature and habitat.
    
    Correct Option: (c) A is true but R is false.
    Solution: Biosphere reserves, national parks and wildlife sanctuaries are the protected areas for plants and animals having similar nature and habitat. They aim to protect the flora and fauna from poaching, grazing and deforestation.
    
    
23. Assertion (A): Flying squirrel is an example of endemic fauna.
    Reason (R): Endemic species are those species that are on the verge of extinction.
    
    Correct Option: (c) A is true but R is false.
    Solution: Flying squirrel is an example of endemic fauna of Pachmarhi Biosphere Reserve. Endemic species are those species of plants and animals which are found exclusively in a particular area. They are not naturally found anywhere else.