Ques:The greater the objects mass, the greater the force of attraction; in addition, the greater the distance between objects, the smaller the force of attraction.  A rock has more mass then a pebble. Which object will exhibit a greater force of attraction rock or pebble?

Ans:rock
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Ques:Richer nations use far more energy resources, especially fossil fuels, than poorer nations do.  If America is a rich nation and China is a poor nation, which nation uses less energy resources China or America?

Ans:China
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Ques:Less photosynthesis means that plants and phytoplankton produce less food.  If Mona owns a greenhouse and she decides to cover the top up to restrict sunlight, what happens to her plant's ability to make food increases or decreases?

Ans:decreases
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Ques:When two skateboarders push against each other, it causes them to move apart. The harder they push together, the farther apart they move.  When you use more force to move a car it will move less or move further?

Ans:
move further
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