Answer:
Option c
Explanation:
Regional metamorphisim occurs as a result of tectonic activity and is characterized with low temp and high pressure conditions over a large area while contact metamorphism occurs intrudes existing rocks.
The two gasses in the troposphere that play vital role in heat absorption are the water vapor and the carbon dioxide. Both of them are gasses that trap both part of the solar heating, and part of the Earth's heating, and they play a vital role in the regulation of the temperature on the Earth with the process better known as ''Greenhouse effect''.
The purpose of the scale on a map is to allow the user to determine the ratio between distances on the map and actual distances on the surface of the Earth.
Answer: C. allows the user to determine the ratio between distances on the map and actual distances on the surface of the Earth.
Drier climates the answer would be B.
