An important property of air circulation is

a. warm air is denser than cold air.

b. cold air and warm air have the same density.

c. cold air is denser than warm air.

d. air has no mass.

Question #2 - What big company is the owner of Twitch after buying it in 2014?

If you travel from the capital of florida to the capital of georgia in what direction do you go

What were some of the causes of the Amu Darya and Syr Darya rivers being ruined? Select all that apply.

One way in which knights, samurai, and warlords are similar is that they all A. were traditional religious leaders B. occupied military posts in the Chinese Empire C. expelled the Moors from Spain D. held positions of power in feudal systems

Which event causes tides? the blowing of the wind the movement of warm and cool water the interaction of the moon, the Sun, and Earth the mixing of surface water and deep ocean water

Different types of crust react in different ways when they collide with another piece of Earth's crust.

Dark spots on the photosphere are known as A. solar wind. B. the chromosphere. C. the corona. D. sunspots.

The planet jupiter is 7.78x10^11 m from the sun. how long does it take for jupiter to orbit once about the sun? (the distance from the earth to the sun is 1.50x10^11m)

Why tourism is increasing?

How will the Rusty-Spotted Cat survive if it's habitat was changed?