Answer:
Step-by-step explanation:
1. The Sun rises and sets each day because Earth is rotating making one half of the world dark and the other half in light, 2. The sky is blue because the reflection of water, 3. Humans first formed in Africa, 4. Birds fly cause their wings catch air and fish swim to breathe and eat, 5. When the attraction becomes too strong, the positive and negative charges come together, or discharge, to balance the difference in a flash of lightning (sometimes known as a lightning strike or lightning bolt). The rapid expansion and heating of air caused by lightning produces the accompanying loud clap of thunder, 6. Snow forms when it is cold freezing the rain, 7. Deep within the Earth it is so hot that some rocks slowly melt and become a thick flowing substance called magma. Since it is lighter than the solid rock around it, magma rises and collects in magma chambers. Eventually, some of the magma pushes through vents and fissures to the Earth's surface, 8. snakes do need feet because they can slither to get where they need to go, 9. The Moon doesn't emit (give off) light itself, the 'moonlight' we see is actually the Sun's light reflected off the lunar surface. So, as the Moon orbits the Earth, the Sun lights up different parts of it, making it seem as if the Moon is changing shape, 10. inside thunderclouds, warm, humid air rises, while cool air falls--along with rain or hail. These conditions can cause spinning air currents inside the cloud. Although the spinning currents start out horizontal, they can turn vertical and drop down from the cloud--becoming a tornado.