A new home had a wooden floor put down in cool weather. As the weather became warmer, the floor started to buckle, rising up in the middle of the floor. The floor was fixed by trimming the edges of the floor so that there was a space between the flooring and the wall. Choose the response that best explains why this helped to make the floor flat again.

How do hydroponic plants differ from nonhydroponic plants? a.) hydroponic plants can grow in a dryer soil. nonhydroponic plants grow in moist soil. b.) hydroponic plants grow on other plants and are known as air plants. nonhydroponic plants do not grow on other plants. c.) hydroponic plants can only grow in rain forests. nonhydroponic plants cannot grow in rain forests. d.) hydroponic plants are grown without soil. nonhydroponic plants are grown in soil.

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The necleus of an atom is made up of what subatomic particles?