Weegy: The coldest layer of the atmosphere is the mesosphere User: _____is the hottest layer in the atmosphere. User: what is the hottest layer in the atmosphere. Weegy: The thermosphere is the "hottest" layer of the Earth's atmosphere. [ As the outermost layer with substantial numbers of molecules, it receives the most direct radiation from the Sun. However, despite the high molecular temperatures measured there (over 1500°C) the ... (More)

Weegy: If you are referring to trace gases in the atmosphere, argon is the most abundant. Your answer is argon. User: The thermospheremesospherestratosphereozonospheretroposphere is the coldest layer and the thermospherestratosphereozonospheremesospheretroposphere is the hottest layer in the atmosphere. Weegy: Is this a true or false question? You didn't clarify what your question is. Please do so and we'll be happy to assist you! (More)

Weegy: The waxy substance that helps plants retain water is called cuticle. (More)

Weegy: troposphere (More)

Weegy: Arthropoda means "jointed feet." (More)