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CBSE Class 10 Answered

What is the important function of presence of ozone in earth’s atmosphere?
Asked by gargi.gholap | 26 Apr, 2019, 01:18: PM
answered-by-expert Expert Answer
Ozone is a layer in the stratosphere which extends from 20 -50 km from the Earth’s surface.
 
It absorbs the harmful ultra violet rays of the Sun coming towards the surface of the Earth. Without the ozone layer, the sun rays may cause skin cancer, cataract etc.
Answered by | 26 Apr, 2019, 01:58: PM

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CBSE 10 - Biology
(A)Assertion : aquarium needs to be cleaned regularly (R)Reason : In an aquarium there is no microbes to clean the water.   a) both A and R are true and R is correct explaination for A.  b) both A and R are true but R notthe correct explanation of c)  A is true R is false d) A is false R is true         
Asked by karthikeyanponraj0109 | 30 Dec, 2022, 10:14: PM
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CBSE 10 - Biology
biomagnification
Asked by siyashandilya1234 | 12 Apr, 2021, 08:50: AM
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CBSE 10 - Biology
Why is damage to ozone layer is a cause of concern? Why steps are  being taken to limit this damage?
Asked by saketarnav2005 | 29 Oct, 2020, 09:23: AM
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CBSE 10 - Biology
What is the effect of biomagnification on organisms of different trophic levels, especially the tertiary consumers?
Asked by sajalbhat | 15 Apr, 2020, 12:07: AM
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CBSE 10 - Biology
How doesw water shed management increases biomass production  
Asked by Kawalsyali | 01 Mar, 2020, 12:19: PM
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CBSE 10 - Biology
dumping of non biodegradable wastes reduce crop yield . why?
Asked by bhavanisalunkhe33 | 26 Feb, 2020, 12:18: PM
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CBSE 10 - Biology
Please solve this below question
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Asked by manjularaj4623 | 23 Feb, 2020, 12:28: PM
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CBSE 10 - Biology
define the term biomagnification  
Asked by hemasuma1975 | 24 Jan, 2020, 09:23: PM
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CBSE 10 - Biology
explain the phenomenon of biological magnification .How does it affect organisms belonging to different tropic level particularly the tertiary consumers
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Asked by shivaniab7 | 13 Dec, 2019, 02:28: PM
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CBSE 10 - Biology
Recycling is a good method for conservation of resources and disposal of waste. Justified the statement    
Asked by Kozavietsho | 19 Sep, 2019, 07:54: PM
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