Environmental Science - Study Mode

[#436] CFC releases a chemical which is harmful to ozone is
Correct Answer

(A) chlorine

Explanation

Solution: The CFCs, when released into the atmosphere, react with UV rays to form chlorine atoms which destroy the ozone layer and results in the thinning out of the ozone layer also known as the ozone hole.

[#437] Birth rate is called
Correct Answer

(C) natality

Explanation

Solution: The ratio of total live births to total population in a specified community or area over a specified period of time. The birthrate is often expressed as the number of live births per 1,000 of the population per year. Also called natality.

[#438] Death rate of the population
Correct Answer

(A) Mortality

Explanation

Solution: Mortality rate, or death rate, is a measure of the number of deaths in a particular population, scaled to the size of that population, per unit of time.

[#439] Animals and plants are best protected in
Correct Answer

(C) National Parks

Explanation

Solution: Animals and plants are best protected in national parks.

[#440] Global warming is caused by
Correct Answer

(A) GHGs

Explanation

Solution: Global warming is caused by GHGs(Green house gases).