Start of main content

Multiple-choice quiz with 15 questions. This page is subject to change.

Question 1 : Complete the following statement: In the 21st century, climate change is…

The good answer is B. Explanation: The global climate varies naturally in response to various factors, including the amount of sunlight that reaches the earth. GHGs trap part of the heat produced by the sun in the earth’s atmosphere. However, GHG concentrations have exploded due to human activity. The result has been constantly intensifying climate change.