Which of the following statements are true regarding fossil fuels and pollution? Select all that apply.
SELECT ALL THAT APPLY
Incomplete burning of petroleum produces
more pollution than complete burning of
petroleum.
Sulfuric acid forms when coal or oil is
burned.
All compounds that are produced by
burning fossil fuels are pollutants.
Mercury is released as a liquid when fossil
fuels are burned.

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.

idk about that one.