Earth's core is made up of mostly what? a.) silicate materials b.) magnesium and iron c.) iron and nickel d.) light elements like hydrogen

Which of the following statements best explains the relationship between medicines and concerns about the shrinking of the amazon rainforest?

Northeastern china, north korea, northern japan containing coniferous forests, temperate grasslands, and agriculture, are all part of what climate zone? a. tropical desertb. desertc. humid subtropicald. humid continental

The hebrews originally migrated from a. india b. egypt c. arabia d. mesopotamia