What represents the presence of the rhesus protein on blood

The Rh factor represents the presence of the rhesus protein on blood.

Rh+ blood contains the rhesus protein.

Rh-  blood does not contain the rhesus

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

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.