Question

1. what are cirrus clouds mostly made of? 10 points water droplets ice crystals dust particles fog 8. why might cirrus clouds indicate a change in weather? 10 points they are very dark they move slowly across the sky they often appear ahead of warm or cold fronts they always bring storms

Explanation:

Cirrus clouds are high - level clouds. At high altitudes (above 20,000 feet), the temperature is very low. Water vapor freezes to form ice crystals, which is what cirrus clouds are mainly composed of. Cirrus clouds often form ahead of weather systems like warm or cold fronts. As the front approaches, the weather changes. For example, a warm front bringing more moisture and a change in temperature and wind patterns.

Answer:

1. Ice crystals
2. They often appear ahead of warm or cold fronts