What choice best describes a wind that is caused by a convection current? A: Warm air is more dense than cool air, so the warm air rises and cool air sinks and takes it's place creating wind.

B: Warm air is less dense than cool air, so the warm air rises and cool air sinks and takes it's place creating wind.

C: Cool air is more dense than warm air, so the cool air rises and warm air sinks and takes it's place creating wind.

D: Cool air is less dense than warm air, so the cool air rises and warm air sinks and takes it's place creating wind.

the answer i d

Explanation:

the answer is actually c

Explanation:

Cold air is more denser than hot air because ,when cold air of some density, say 'd' is heated, the molecules/atoms move apart from each other and so the volume expands. i hope that helped you

g1

choices:

a. g2. b. g1. c. m

cell division has two checkpoints namely, g1

checkpoint and spindle assembly checkpoint. the checkpoint which determines if

division has properly occurred is the g1 checkpoint. at this point, is a damage

in the dna is detected or  the has not reach the optimum size, the cell is

stopped in g1 and is not allowed to proceed to further process.

source:

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.