Secrest,+A.

[[file:DentDent Gravity+HW+test+#2.xls]]
** Have you seen the far side of the Mo **  2. An earthquake. When a section of rock along a fault line breaks, an earthquake is triggered. Scientists learn from earthquakes how to predict them. Faults (cracks) in the Earth's surface cause earthquakes. Earthquakes cause movement along faults and moved the tectonic plates to their current locations. Earthquakes can be very dangerous and cause many deaths. On the Mercalli scale of measuring earthquakes, an earthquake measured 12 will create noticeable bends and waves in the earth's surfa ce .  3. An earthquake that weak wouldn't be felt outside or inside a building. It is too weak to even damage things. If Fred would have known there was an earthquake, he would have had to have learned it after the fact because the quake was too weak.  4. The nearer the site for launching rockets into space is to the equator, the better. That is because then, due to the rotation of the earth, the rockets can get an enormous push of about 40.000 / 24 = 1700 km/h. That saves fuel and hence money.
 * Hid **1. If you are standing on the Moon, you will never see the Earth rise or set. One side of the Moon always faces the Earth, while the other side always faces away. So depending on where you are on the Moon, the Earth will either always be in the sky, or never be in the sky; it will not rise or set. You may have seen the famous "Earthrise" picture; it was taken from a spacecraft orbiting the Moon. Since the spacecraft was moving around the Moon, it was able to see the Earth rise as it moved. The other parts of the story could be true. Because of the lower gravity on the moon, you can jump about 6 times higher than on Earth. Even though they don't contain water, many craters on the Moon are called seas, so you would be able to walk in the Sea of Tranquility.

French-Guyana is close to the equator and is besides French teritory, so therefore the European rockets are launched there. For the same reason, the Americans launch their rockets from Florida, which is their most southern state.