The word you're looking for is waning. When the moon's illumination is increasing, it is waxing.
The Panama Canal because it makes the most money and is the most important out of all the four.
September 5, 1793 - July 27, 1794
Weathered rock. Im sure its the breaking down (weathering) of rocks that makes soil
Answer:
True, Earth quakes are sound waves traveling through the earth
