In which of the following layers of atmosphere, vertical movement or convection of air leads to clouds generation?

Answer: [A] Troposphere

In troposphere vertical movement or convection of air generates clouds. There is no regular convection and associated turbulence in stratosphere. In Mesosphere, Noctilucent clouds are formed which are small ice crystals which requires a combination of very low temperatures, a source of water vapour, and nuclei on which ice can grow.

This question is a part of GKToday's Integrated IAS General Studies Module