Question

what is a greenhouse?​

Answer 1

Answer:

A greenhouse is a structure with walls and roof made chiefly of transparent material, such as glass, in which plants requiring regulated climatic conditions are grown. These structures range in size from small sheds to industrial-sized buildings. A miniature greenhouse is known as a cold frame.

Explanation:

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Answer 2

Answer:

A greenhouse is a structure where plants are grown under controlled temperature conditions. It is covered with glass which allows the Sun's rays to enter, but prevents the heat to radiate back into the atmosphere.