Physics Test 1 General Science Aptitude

Physics Test 1 General Science Aptitude
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Question 21

When water is filled in a bottle and is allowed, to freeze, the bottle breaks because_____?
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Water expands on freezing due to the formation of ice crystals, which exerts pressure on the bottle.
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Question 22

During a total solar eclipse there is most likely to be_____?
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Photosynthesis decreases due to absence of sunlight during a total solar eclipse.
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Question 23

Heating element of an electric heater is made up of_____?
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Nichrome is used because of its high resistance and ability to withstand high temperatures.
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Question 24

In an oil lamp, the oil rises up.in the wick due to_____?
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The porous wick pulls oil upward through capillary action.
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Question 25

Acid rain contains high levels of_____?
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Acid rain forms when sulfur dioxide and nitrogen oxides react with water to produce sulfuric and nitric acids.
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Physics test-1 General-science Aptitude
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