What gas forms 21% of earth's atmosphere A. Argon

B. Carbon dioxide

C. Nitrogen

D. oxygen

Me plzzz what is the ratio of water than falls on land as compared to the amount that falls onto the oceans? what role do clouds play in regulating earth’s energy balance? me plzzz

If the basis of an isosceles trapezoid have lengths of 11 and 26, what is the length of the median?

Why did the belgian parliament pass laws to decentralize its government? a. to increase trade with neighboring luxembourg b. to decrease the political power enjoyed by the flemish c. to enable belgium to join the european union d. to reduce tensions between belgium's two main ethnic groups