Diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? check all that apply the shells make up the diatomaceous earth used in filters it can be used as an ingredient in abrasives they are used in food products the shells can be used in some insulating materials

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.