Plate tectonics are important to geoloigists because they explain how the continents make up the earths crust.
Answer:
Studying the <u>ecosystem</u> of a place helps the geographer to understand how living things
interact with their physical environment.
Explanation:
optical telescope (Hubble), X ray telescope ( Chandra) etc.
get around the Earth's atmosphere so that we can get a clearer view of the planets, stars, and galaxies that we are studying.
Calhoun was vice president of the United States in 1824 under John Quincy Adams and was re-elected in 1828 under Andrew Jackson. Jackson was for the Tariff of 1828 and caused Calhoun to be opposed to Jackson, which led to Calhoun's resignation in 1832.