The air above earths surface is at different temperatures. what is responsible for this difference in temperature?

the moon
the sun
earths rotation

Which statements are accurate about snow flakes

What is the general rule about surface currents? cold water flows along the ocean floor towards the equator. the east coasts of continents have cold surface currents, and the west coasts of continents have warm surface currents. seasonal and constant offshore winds create significant upwelling along the west coasts of south and north america and africa. the west coasts of continents have cold surface currents, and the east coasts of continents have warm surface currents.

Equilateral triangle pbj is inscribed in a circle as shown. determine the measure of arc pjb.