When the inherited blood types of mother and fetus differ, the most common cause of difficulties is?

Answer;

-Rh factor incompatibility

Explanation;

-Rh incompatibility is a condition that occurs during pregnancy if a woman has Rh-negative blood and her baby has Rh-positive blood.

-Rh incompatibility rarely causes complications in a first pregnancy and does not affect the health of the mother. But if Rh antibodies develop, they could be dangerous to a fetus during later pregnancies. Rh disease can cause severe anemia, jaundice, brain damage, and heart failure in a newborn.

a

explanation:

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.