exosphere

"The uppermost floor of the school building houses the administration offices. "

"My family and I are planning a trip to explore Earth's diverse landscapes. "

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

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

"Scientists study plants to understand how they grow. "

"The weather was extremely hot today; we stayed inside all afternoon. "

"After the first coat of paint dried, he applied another layer."

"Should we classify "make up" as an idiom or as a phrasal verb?"

"the within appeal"

"The ancient Greeks studied the planets, including Mercury and Mars, to understand the night sky. "

"A spent upper stage is a derelict satellite."

"The Earth's orbit around the sun takes a year. "