A factory is emitting large amounts of CFCs into the atmosphere. How might this affect people?
Which is a sustainable practice?
Which gases contribute to the greenhouse effect?
Freshwater can be renewed, but environmentalists consider it nonrenewable. Why is there a contradiction in classification?
Which water source may become polluted as it travels over land?
Scientists predict that we will eventually use up all available fossil fuels. Which list includes only fossil fuels?
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?
Which type of pollution includes CFCs and smog?
Which is a renewable resource?
Which of the following substitutions can help reduce air pollution?
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