How does earths biosphere cycle material over and over?

At which location in earth’s interior does the top density continue to increase as thickness decreases?

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

Which of the following are not included as modern mammals that evolved during the eocene epoch? primates artiodactyls perissodactyls none of the above