71 Un mobil se deplasează pe o dreaptă plecand din punctul de coordonată +10 m si ajunge in punctul de coordonată - 10 m, in timp ce alt mobil pleacă pe aceeasi dreaptă din punctul de coordonată 10 m și ajunge in punctul de coordonată +10 m. Prin ce se aseamănă si prin ce se deosebesc miscarile acestora? plAm nevoie repede.

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as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.