Which of the following gases is most responsible for the greenhouse effect?

What is the primary cause of acid rain?

Which term describes the variety of life in a particular habitat or ecosystem?

What is the main purpose of a water treatment plant?

The layer of the atmosphere that absorbs most of the harmful ultraviolet radiation from the sun is called the:

What is a major environmental consequence of deforestation?

Which of these is an example of a renewable energy source?

What does the term 'carbon footprint' refer to?

What is the process by which fertile land turns into desert?

Which international agreement aimed to reduce greenhouse gas emissions?