What is the purpose of using a telescope?
A. to communicate with far away planets
B. to add light to objects and brighten them
C. to make distant objects seem larger and
brighter
D. to enlarge something that is very tiny

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Explanation: Early telescopes focused light using pieces of curved, clear glass, called lenses. However, most telescopes today use curved mirrors to gather light from the night sky. The shape of the mirror or lens in a telescope concentrates light. That light is what we see when we look into a telescope.

answer; in the united states the plains include the great plains of the west and the tail grass prairie to the south of the great lakes extending east to the appalachian plateau