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Concise Biology Part II - Selina Solution for Class 10 Biology Chapter 16 - Pollution - A Rising Environmental Problem

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Selina Textbook Solutions Chapter 16 - Pollution - A Rising Environmental Problem

Selina Textbook Solutions are a perfect way to ace your examination with high marks. These Textbook Solutions are extremely helpful for solving difficult questions in the ICSE Class 10 Biology exam. Our Selina Textbook Solutions are written by our subject experts. Find all the answers to the Selina textbook questions of Chapter 16 - Pollution - A Rising Environmental Problem.

All solutions Selina textbook questions of Chapter 16 - Pollution - A Rising Environmental Problem are created in accordance with the latest ICSE syllabus. These free Textbook Solutions for ICSE Class 10 Selina Concise Biology will give you a deeper insight on the fundamentals in this chapter and will help you to score more marks in the final examination. ICSE Class 10 students can refer to these solutions while doing their homework and while studying and revising for the Biology exam. 

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Concise Biology Part II - Selina Solution for Class 10 Biology Chapter 16 - Pollution - A Rising Environmental Problem Page/Excercise 1

Solution A.1

(d) The dust raised during road-cleaning

Solution A.2

(b) Disposing of corpses in rivers

Solution A.3

(b) Ozone

Solution B.1

(i) SO2

(ii) Bromochlorodifluoromethane and chlorofluoromethane

(iii) Mercury

Solution B.2

 

Column I

Column II (Answers)

(i)     Chlorofluocarbons (CFCs) 

(ii)   Flyash

(iii) Cow dung            

(iv)  CO2 and methane

(v)    Sulphur dioxide               

(vi)  Iodine - 131

(f) Ozone depletion

(e) Industrial Waste

(b) Biodegradable

(a) Global Warming

(d) Acid Rain

(c) Nuclear Radiation Pollutant

 

Solution B.3

(i) vehicular air

(ii) X-ray

(iii) hot

(iv) domestic activities

Solution B.4

Biodegradable wastes: peels of vegetables and fruits, grass, paper

Solution B.5

4Rs - Reduce, Reuse, Recycle, Recover

Solution C.1

(i) Rivers contaminated with sewage:

(a) A number of waterborne diseases are produced by the pathogens present in polluted water, affecting humans as well as animals.

(b) The flora and fauna of rivers, sea and oceans is adversely affected.

(ii) Too much gaseous exhausts containing CO2 and SO2:

(a) The high concentration of CO2 in atmosphere has been the main component of the green house effect that has caused global warming i.e. the rise of atmospheric temperature in recent years. Global warming causes melting of snow caps rise in sea levels.

(b) SO2 is poisonous and irritates the respiratory system of animals and humans. A continuous exposure to SO2 has been reported to damage the lungs and increase the rate of mortality.

(c) SO2 is also responsible for acid rain

(iii) Pesticides such as DDT used in agriculture:

(a) Pesticides kill soil microbes which are responsible to recycle the nutrients in the soil.

(b) Pesticides can enter the food chain and affect the health of humans as well as animals. It can cause damage to the lungs and central nervous system, failures of reproductive organs and dysfunctions of the immune system, endocrine system, and exocrine system, as well as potential cancer risks and birth defects.

(iv) Prolonged noise such as the one produced by crackers :

(a) Prolonged exposure to the high decibel noise damages ear drums and can bring permanent hearing impairment.

(b) Noise pollution can lead to high blood pressure (hypertension), constant headache, lack of concentration.

Solution C.2

Three major constituents of sewage:

  • Kitchen wastes
  • Sanitary waste
  • Waste from agricultural lands

Solution C.3

The common sources of oil spills are: The overturned oil tankers, offshore oil mining and Oil Refineries.

The sea birds and sea animals sometimes get thick, greasy coating on their bodies due to oil spills.

  • Sea birds may ingest their oil coated. This may irritate their digestive system, may damage liver and kidney.
  • Oil spills lead to the death of sea birds as well as sea animals.

Solution C.4

Measures to minimise noise pollution:

(i) Use of loud speakers should be banned.

(ii) Airports should be located away from the residential area.

Solution C.5

'Swachh Bharat Abhiyan' is a significant cleanliness campaign started by the Government of India. It was officially launched on 2nd October 2014 by Indian Prime Minister Narendra Modi, who took the cleanliness pledge at India Gate in Delhi.

 

Objectives of Swachh Bharat Abhiyan:

  • To clean the streets, roads and infrastructure of the country's cities and towns
  • To eliminate open defecation through the construction of individual, cluster and community toilets
  • To establish accountable mechanisms of monitoring latrine use
  • To achieve efficient solid and liquid waste management systems

Solution D.1

(i) Industrial Waste:

Large number of industries produces waste water which contains various types of chemical pollutants. Such wastes are commonly discharged into the rivers. These chemicals cause irritation to the body systems of fish.

(ii) Thermal Pollution:

Many industries such as thermal power plants, oil refineries, nuclear plants use water for cooling their machinery. This hot waste water may be 8-10oC warmer than the intake water. This hot water is released into the nearby streams, rivers or the sea and causes warming. The sudden fluctuation in the temperature of water kills the fishes and harms the plant life growing in it.

Solution D.2

(i) Noise Pollution

(ii) Industrial machines, workshops, trains, loud conversation, loudspeakers, etc.

(iii) Effects of noise pollution:

I. It lowers efficiency of work.

II. It disturbs sleep and leads to nervous irritability.

Solution D.3

(i) Ozone layer depletion is a phenomenon in which certain gaseous compounds such as chlorofluorocarbons (CFCs) break down into chlorine atoms which in turn break down ozone (O3) into oxygen (O2) and O.

 

(ii) Sources of ozone layer depletion:

Gaseous compounds such as chlorofluorocarbons (CFCs) released from refrigerators, aerosol spray cans and packaging material styrofoam.

 

(iii) Effects of ozone layer depletion on humans:

 Sun burn

 Genetic disorders

 Skin cancer

Solution D.4

The picture shows the cleanliness campaign called Swachh Bharat Abhiyan recently started by the Indian Government. 

 

(i) This campaign was launched on 2nd October 2014 by Indian Prime Minister Narendra Modi.

 

(ii) Objectives of Swachh Bharat Abhiyan:

  • To clean the streets, roads and infrastructure of the country's cities and towns
  • To eliminate open defecation through the construction of individual, cluster and community toilets
  • To establish accountable mechanisms of monitoring latrine use
  • To achieve efficient solid and liquid waste management systems

TopperLearning provides step-by-step solutions for each question in each chapter. Access Chapter 16 - Pollution - A Rising Environmental Problem  for ICSE Class 10 Biology free of cost. The solutions are provided by our subject matter experts. Refer to our solutions for the Selina Concise Biology textbook to revise the whole chapter and clear your fundamentals before the examination. By referring to the solutions for this chapter and the others, we hope that you are able to write your exams well.

Text Book Solutions

ICSE X - Biology

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