Environment and Ecology Tnpsc Online Quiz Question, Group 1 2 2a 4, VAO Group Question

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Environment and Ecology

7.

If the plant producer dies in the ecosystem, then the system is

A. Seriously affected B. Cannot produce food C. Can have more producer D. Hardly affected

Answer : A. Seriously affected

8.

Urea is fromed during

A. Kreb's cycle B. Citric acid cycle C. Ornithine cycle D. Nitrogen cycle

Answer : C. Ornithine cycle

9.

Air pollutants destroy the

A. Oxygen layer B. Nitrogen layer C. Cloud layer D. Ozone layer

Answer : D. Ozone layer

10.

The gases which are responsible for acid rain are

A. Nitrogen dioxide and Carbon dioxide B. Nitrogen dioxide and Sulphur dioxide C. Carbon dioxide and Sulphur dioxide D. Carbon dioxide,Sulphur dioxide and Nitrogen dioxide

Answer : B. Nitrogen dioxide and Sulphur dioxide

11.

Which one of the following is correctly matched?

A. Producer - Deer B. Primary consumer - Leopard C. Secondary consumer - Grass D. Decomposer - Bacteria

Answer : D. Decomposer - Bacteria

12.

The total organic matter present in an ecosystem is referred as

A. Biomass B. Biosphere C. Biome D. Biocoenosis

Answer : A. Biomass

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