Clouds form at high altitudes due to the decrease in air temperature with altitude within the troposphere.
Cloud Formation at High Altitudes: Clouds tend to form at high altitudes within the troposphere due to the decrease in air temperature with altitude. As altitude increases, the air molecules are more spread out and less likely to collide, leading to lower temperatures and the condensation of water vapor into clouds.
https://brainly.com/question/43241982