mesosphere

"Satellites orbit the Earth within the thermosphere, a layer of the atmosphere where temperatures can get very hot. "

"The geologists studied the rocks to learn about the history of the Earth. "

"I will purchase the vacation package if you will include car rental."

"I went to the park because the weather was nice. "

"The geologist studied the stratosphere exposed in the road cut, carefully examining the layers of sediment for clues about the region's history. "

"The cozy interior of the library was perfect for studying. "

"The atmosphere was thick with the smell of popcorn, as the kids gathered for the movie night. "

"Airplanes fly people across countries for vacations and business trips. "

"The Earth's lithosphere, which includes the crust and upper mantle, floats on the softer, more pliable asthenosphere. "

"The path from the school to my house goes directly through the park. "

"A spent upper stage is a derelict satellite."

"A spent upper stage is a derelict satellite."