Environmental Science - Study Mode

[#311] Which of the following is the major cause of pollution?
Correct Answer

(D) hydrocarbon gases

Explanation

Solution: Hydrocarbon gases is the major cause of pollution.

[#312] Which of the following would be considered to be a biotic component of an environment?
Correct Answer

(C) Fungi

Explanation

Solution: Biotic components are the living things that shape an ecosystem. Examples of biotic components include animals, plants, fungi, and bacteria. Abiotic components are non-living components that influence an ecosystem. Examples of abiotic factors are temperature, air currents, water, and minerals.

[#313] Bears are usually hunted and killed for their
Correct Answer

(B) Skin

Explanation

Solution: Bears are usually hunted and killed for their skin.

[#314] All the genes of a population is called
Correct Answer

(A) gene pool

Explanation

Solution: The Collective Set of Alleles in a Population Is Its Gene Pool. The fact that genes exist in alternate forms, called alleles, forms the basis for the study of population genetics. Populations are made up of members of the same species that interbreed.

[#315] Viable material of endangered species can be preserved by
Correct Answer

(A) Gene bank

Explanation

Solution: Viable material of endangered species can be preserved by gene bank. Gene bank is an institute that maintains stocks of viable seeds (seed banks), live growing plants (orchards), tissue culture and frozen germplasm with the whole range of genetic variability.