Why is Earth the only planet in our solar system that appears to support life? Why can’t you—and other animals or plants—live on Mars or Venus? How does Earth’s atmosphere today compare with its atmosphere four billion years ago? What might be the planet’s future if people continue to pollute...
Why is Earth the only planet in our solar system that appears to support life? Why can’t you—and other animals or plants—live on Mars or Venus? How does Earth’s atmosphere today compare with its atmosphere four billion years ago? What might be the planet’s future if people continue to pollute the air? Find out the answers to these and other questions about Earth’s atmosphere in this book.