How do genetic diseases in offspring, that were not present in parents, occur A.)They occur by chance in one or a few egg or sperm cells, or right after fertilization

B.)They occur from lack of nutrients to the offspring

C.)Mutations only occur if the mother and father pass them on.

uh two lol

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.