U1 post assessment

Match it! Select the correct answer from the pull down...Good luck!

What percentage of the earth is covered in freshwater?

What is a government agency that serves us by forming laws and regulations to protect the environment?

What is a mixture of smoke, fog, and chemicals in the air?

Which of the following is a dangerous mineral to humans and can often cause problems if you eat too much fish that has lived in a contaminated area?

What is a resource that is limited and we cannot make more of is called?

How can you help solve the problem of land pollution

What is the introduction of harmful materials into the environment is called?

What is the main cause of air pollution