Environmental Science - Study Mode

[#666] The first trophic level in a food chain
Correct Answer

(A) Green Plants

Explanation

Solution: The first trophic level of the food chain is always occupied by green plants which are termed to be producers. This is because producers absorb sunlight, abiotic factor and fix it into food chain. This energy is transferred to organisms in other trophic levels of the food chain.

[#667] The global temperature has risen by about __________ degree celsius, since the peak of last glacialisation.
Correct Answer

(C) 8

Explanation

Solution: The global temperature has risen by about 8 degree celsius, since the peak of last glacialisation.

[#668] The total number of major languages in India are
Correct Answer

(C) 16

Explanation

Solution: The total number of major languages in India are 16.

[#669] The combined albedo of the earth and the atmosphere is approximately ____ percent.
Correct Answer

(C) 30

Explanation

Solution: The albedo of the earth's surface is only about 4%, yet the combined albedo of the earth and the atmosphere is about 30%.

[#670] Oil, coal and natural gas supply approximately __________ % of the energy used in the United States
Correct Answer

(D) 81

Explanation

Solution: The United States gets 81% of its total energy from oil, coal, and natural gas, all of which are fossil fuels. We depend on those fuels to heat our homes, run our vehicles, power industry and manufacturing, and provide us with electricity.