Books by Valerie Rapp
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Every living thing on our planet needs air to survive. Most of the time, we hardly even think about Earths air. But did you know that many of the things we use every dayfrom cars to electricityhurt the quality of our air? The pollution in the air can make people, plants, and anim ...
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Every living thing on our planet needs air to survive. Most of the time, we hardly even think about Earth's air. But did you know that many of the things we use every day???from cars to electricity???hurt the quality of our air? The pollution in the air can make people, plants, a ...
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Nearly all living things depend on Earth's land and its resources to survive. But did you know that people do many things that hurt the land? The damage sometimes destroys forests, which are home to diverse ecosystems and are important in producing oxygen and water. And in many p ...
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Using the Columbian River Basin as an example, explores the ecosystems of rivers of all sizes in mountains and valleys, and discusses the impact of human interaction.
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