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Biology, 22.06.2019 01:30
Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.
Answers: 1
Biology, 22.06.2019 01:30
Hedgerows have created a new ecosystem within britain’s a. farms b. cities c. forests d. industrial areas
Answers: 1
What does it mean when we say a gene is "turned off"? What does it mean when we say a gene is "turne...
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