Which of the following is a risk of airbags? 1. They cause injuries to passengers.
2.They expand too slowly after accidents.
3.They increase the cost of vehicles.
4.They alter the function of safety belts.

Airbag deployment can reach speeds of up to 200 mph. If your face, chest, or any other body part is too close to the steering wheel when the bag deploys, you could experience severe fractures or internal injuries as a result.

1.(They cause injuries to passengers)

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is this a psat question, if so do not cheat try your best.

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.