B. Because nickel silicon and magnesium is not correlated to lava(magma) so there for b is your answer
Answer:
Letter "A" is correct.
Explanation:
Globalization is the way how people get together and integrate around the world and the way things move worldwide. The reasons globalization increases so fast are the faster methods of transportations that helps people and things be anywhere, and the internet that connects people to the world in seconds.
Answer:
Greenhouse effect
Explanation:
Greenhouse effect is the trapping of the sun's warmth in a planet's lower atmosphere, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface.
Answer:
A. increased; Great Migration
Explanation:
When the migration began, 90 percent of all African-Americans were living in the South. By the time it was over, in the 1970s, 47 percent of all African-Americans were living in the North and West. A rural people had become urban, and a Southern people had spread themselves all over the nation.
