Image courtesy of NASA Which of the following statements is supported by the picture shown above? A. The Earth has a magnetic field that can be detected with a compass. B. The Earth is made mostly of rock. O C. Three-fourths of the Earth's surface is covered by a thin layer of water. The Earth is orbited by one moon.​

1. in what ways have non-native species been beneficial? 2. what are some of the hypotheses for the collapse of honeybee colonies? 3. distinguish between regional and functional extinction. 4. why is it difficult to measure background extinction rates? 5. what three factors are most important in causing extinction rates to climb?