Question 1
What does the ozone layer protect living organisms from?
Question 2
Quick review: which type of consumer eats only plants?
Question 3
Quick review: what is a food web?
Question 4
Why are producers considered the foundation of most ecosystems?
Question 5
Give an example of a biodegradable substance.
Question 6
What human-made chemicals are primarily responsible for damaging the ozone layer?
Question 7
What is ozone, chemically?
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