An important contribution made by copernicus is this (correct) assertion that the a. earth was spherical (round) b. sun was the center of the whole universe c. sun was the center of the earth's orbit d. earth was the center of the universe

What is the earth matial ot igneous rock

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

Short answer/constructed response: respond to the question in 3-5 complete sentences. give details or examples to support your answer. attempt to answer all parts of the question in paragraph form! using the source 1 map, pick two of the 1800's territorial acquisitions you believe were the most important in the development of the united states. provide at least two reasons per territory to explain why you think they were the most important.