Questions

Define :

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18 questions · self-marked practice — reveal the answer and mark yourself.

Question 12 Marks
Rare species:
Answer
The organisms whose number is considerably declined and may become extinct very fast are called rare species.
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Question 22 Marks
Species Diversity:
Answer
Innumerable species of organisms occuring in nature is called species diversity.
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Question 32 Marks
Environment:
Answer
Physical, chemical and biological factors affecting the living organisms in any possible way is collectively called as environment.
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Question 42 Marks
Environmental pollution:
Answer
Direct or indirect changes in physical, chemical and biological properties of air, water and soil which will be harmful to humans and other living beings is called environmental pollution.
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Question 52 Marks
Sacred groves:
Answer
The forest conserved in the name of God and considered to be sacred is called sacred groves.
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Question 72 Marks
Primary consumers:
Answer
The animals which feed exclusively on producers only are called primary consumers.
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Question 82 Marks
Secondary consumers:
Answer
The animals which derive their food from primary consumers are called secondary consumers.
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Question 92 Marks
Decomposers:
Answer
The organisms which decompose the dead organisms and derive their food are called decomposers.
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Question 102 Marks
Genetic diversity:
Answer
Occurrence of diversity among the organisms of same species is called genetic diversity.
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Question 112 Marks
Vulnerable species:
Answer
The organisms which are extremely less in number and continue to decline are called vulnerable species.
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Question 122 Marks
Endangered species:
Answer
The organisms whose number is declined or their habitat is shrunk to such an extent that they can be extinct in near future if conservative measures are not implemented are called endangered species.
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Question 132 Marks
Ecosystem:
Answer
The biotic and abiotic factors and their interactions with each other form an ecosystem .
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Question 152 Marks
Producers:
Answer
The organisms which can prepare their own food and make it available for other organisms are called producers.
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Question 162 Marks
Consumers:
Answer
The animals which depend on producers or other organisms for food are called consumers .
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Question 172 Marks
Bio-diversity:
Answer
Biodiversity is the richness of living organisms in nature due to presence of varieties of organisms, ecosystems and genetic variations within a species.
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Question 182 Marks
Ecology:
Answer
The science that deals with the study of interactions between biotic and abiotic factors of the environment is called as 'ecology' .
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