Please I need help --> Calculate the approximate diameter of Earth. Use the lowest figure for the thickness of the crust. Show your work.

Match the vocabulary word with its meaning

Which statement explains what upwelling causes? a. upwelling causes tides to rise and fall. b. upwelling causes changes in the direction of currents. c. upwelling causes nutrients, minerals, and tiny organisms to rise. d. upwelling causes currents in the pacific ocean to change direction. i think the answer is c.

Which is a result of the emission from the use of fossil fuel