CBSE-NET (Based on NTA-UGC) Environmental Science (Paper-II): Questions 385 - 385 of 385

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Question number: 385

» Chemical Composition of Air » Chemical Speciation

MCQ▾

Question

The carbon-dioxide content in the Earth’s atmosphere is currently around 400 ppm. It is estimated that before 1500 AD, CO2 content in earth’s atmosphere was between 200 and 300 ppm. Which of the following greatly contributed this change?

Choices

Choice (4) Response

a.

World War I and II

b.

Invention of agriculture

c.

American Revolution

d.

Industrial Revolution

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