It takes the Earth about 365 days<span> to make one revolution around the sun.</span>
At plate boundaries, I wish this answer helps you. Please help me.
Histology is the study of the anatomy of microbes.
Cytology is the study of cells.
So, they are related. So, true.
Mars' atmosphere is made mostly of carbon dioxide, much like Venus. It is not as hot as Venus because the Martian atmosphere is extremely thin. Venus has a thick layer of carbon dioxide gas surrounding the planet. This is why it is the hottest planet in the solar system even though it is not the closest to the sun. Carbon dioxide is a greenhouse gas so it has the ability to trap infrared radiation. The atmosphere on Mars is thin and so it will not trap as much heat as the Venusian atmosphere.
Mid-ocean ridges extend to all of Earth's oceans. Mid-ocean ridges lie under thousands of meters of water. Mid-ocean ridges spread additional crust on the ocean floor. I'm not sure about the the remaining statement but I know for sure that these three statements are true.