Answer:
A.it prevent some UV rays
The word you're looking for is waning. When the moon's illumination is increasing, it is waxing.
Answer:
we use different maps for locations, geography, and other reasons
Explanation:
you will need a specific map to help you with your needs because each has a different purpose. some may tell you how to get somewhere and some may just be a model of how an area looks
There are 100 senators; two representing each state.
Answer: Gravity made the dust and gas in the nebula collide, flattening these materials into a disk.
Explanation: The nebula theory is a scientific explanation of how the planets and our solar system were formed. It suggests that our solar system was formed more than 4 billion years ago due to the effect of gravity on a cloud of gas and dust which were flattened into a disk. The gravity was so great that the matter in the nebula were made to collide against each other until they were compacted to form our sun.
