[Q]: Process: - Sunlight passes through the glass into the greenhouse - The plants and floor absorb the the sunlight - The absorbed sunlight is converted to heat - The heat cannot escape the glass - The heat is trapped in the greenhouse - The hot air rises - The colder air at the top is pushed to the bottom - The colder air is then warmed by the floor and the plants. Question: suppose less heat escapes from greenhouse happens, how will it affect the greenhouse being COLDER. - A: more - B: less - C: no effect
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[A]: A

[Q]: Process: - A photovoltaic cell is created with two layers of semiconductor material - The top layer are 'doped' with impurities to allow a negative charge - The bottom layer are 'doped' to allow for a positive charge - This produces an electric field that allows electrons to flow from negative to positve - Sunlight enters the cell - Energy from sunlight knocks electrons loose in both fields - This prevents the flow of electrons from negative to positive - Adding an external circuit allows the exchange to continue - Give the cells owner a flow of electricity. Question: suppose more sunny days happens, how will it affect more sunlight enters the cell. - A: more - B: less - C: no effect
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[A]: A

[Q]: Process: - Grass and small plants grow in an area - These plants die - The soil gains organic material - The soil becomes more fertile - Larger plants are able to be supported - Trees eventually grow. Question: suppose more pollution in the environment happens, how will it affect less forest formation. - A: more - B: less - C: no effect
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[A]: A

[Q]: Process: - You inhale - The air enters the mouth and nose - The diaphragm contracts - Air fills all the sacks in the lungs - Oxygen passes through the sacks into capillaries - The blood is passed to the blood in the capillaries - The blood carries the oxygen to the heart - The heart pumps the oxygenated blood to the body. Question: suppose both lungs are healthy happens, how will it affect a GREATER amount of oxygen being delivered to the blood stream. - A: more - B: less - C: no effect
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[A]:
C