Which is a consequence of global warming?
Scientists predict that we will eventually use up all available fossil fuels. Which list includes only fossil fuels?
Which results from an increase in the greenhouse effect?
A factory is emitting large amounts of CFCs into the atmosphere. How might this affect people?
Which of the following substitutions can help reduce air pollution?
As the human population grows, what happens to our natural-resource requirements?
Which gases contribute to the greenhouse effect?
Why are invasive species dangerous to the environment?
Which describes the greenhouse effect?
A new highly nutritious crop is going to be planted in an area where it has never been planted before. Which is the most likely outcome of such an event?
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