Which physical system includes the constantly moving layer of gases, or blanket of air, that surrounds the planet's surface.
a) atmosphere
b) lithosphere
c) hydrosphere
d) biosphere

On this map of the united states the letter h indicates high pressure and the letter l indicates low pressure . select the black arrow that accurately shows the direction of the wind.

Choose the factors that influence the climate of the u. s. northeast. distance from the equator proximity to large urban areas elevation secluded area distance from a large body of water

Describe the four major spheres of the earth system; identify the parts of the earth they each represent. explain what is meant by the "earth system."