B. Because nickel silicon and magnesium is not correlated to lava(magma) so there for b is your answer
Answer:
The United States imports and exports products from / to the BRICS countries, so that changes in trade flows between the BRICS countries also have economic effects on the United States.
Places with a tropical wet climate are also known as rainforests. These equatorial regions have the most predictable weather on Earth, with warm temperatures and regular rainfall. Annual rainfall exceeds 150 centimeters (59 inches), and the temperature varies more during a day than it does over a year.
Explanation:
it changes how the land is and what happens to it