What is the troposphere? What are some characteristics?
What are the characteristic of the troposphere?
Which layers make up troposphere? What is the layer above the troposphere? What function does the exosphere have? Why is the troposphere unstable? Why is troposphere unstable? What are the characteristics of the layers of the atmosphere? What are the layers of the thermosphere? What are common characteristics between the atmosphere and the hydrosphere? What are the five layers of the atmosphere? What are their characteristics? What are the different layers of the atmosphere? What are the layers of atmospheres? What is the innermost layer of the atmosphere? What is atmosphere? What are the four layers of the atmosphere? How do the atmosphere, hydrosphere and lithosphere interact? How do the atmosphere, biosphere, hydrosphere and lithosphere interact? What is the atmosphere like in space? How or why do radio waves reflect the ionosphere?  The radius of the earth is 6400 km,what is the thickness of the atmosphere? What is the density of air? What are its characteristics? Which is the lowest layer of the atmosphere? What are the hemispheres of the Earth? How do they differ? Why does the ionosphere reflect radio waves? What is the ozone layer? What is the atmospheric electricity? How can you measure the atmospheric composition? Why is the hydrosphere in the lithosphere? What are the factors affecting climate latitude? What are the effects of earth's magnetic field on the atmosphere?