Although the term weight is often used to mean mass, strictly speaking, the two terms are not interchangeable. Weight is the force exerted by gravity on an object. Since the Earth is heavier than the Moon, gravity is greater and objects weigh more on Earth. Similarly, the same object weighs even more on the huge planet Jupiter than on Earth. On the other hand, the mass of an object obtained using
a balance is constant. This is because gravity operates equally on both pans of the balance, thereby canceling its effect. The mass of an object is therefore constant whether it is measured on Earth, the Moon, or any other planet.
a. comparison-contrast and explanation
b. cause-effect and explanation c. example and explanation
a
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la mochila
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Estos son los profesores de ?????????????????? te hablé ayer.
Fill in the blank(s) with the appropriate word(s).
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Circle the correct verb for each sentence.