The evolutionary mechanism of gene flow A. separates the gene pools of two or more groups, typically causing the development of a new species.
B. reduces the gene pools of two or more groups, typically causing the extinction of an existing species.
C. combines the gene pools of two or more groups, typically causing the species' change in allelic frequency.
D. destroys the gene pools of two or more groups, typically causing the extinction of an existing species.

idk why hjggjhjkhj

answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.

transformative rocks are the stones that emerge from the transformation of existing rock composes in a procedure called changeability, implies changing of structures. transformative rocks are shaped from alternate shakes that are changing a result of warmth or weight connected. one of this model is the earth developments that making rocks profoundly cover or crushed which will make the stones warmed and put under awesome weight. they are not softening but rather the minerals they are containing are changed synthetically that will shape transformative rocks. now and again different rocks are shaped when the others are near some liquid magma and getting warmed.