Answer:
Radio telescopes, telescopes detecting infrared radiation, gamma rays, and X-rays and space-based telescopes are essential in modern astronomy.
Answer:
they are cold blooded and they have thick fur.
Explanation:
Answer:
3 and 4
Explanation:
Why?
4 has no value nor distance record such as km, m, miles, etc.
This is the same as 3.
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.