Look at these details from a paragraph about the same topic:
Helicopters are sometimes used to carry loads of water tha
Ships in the middle of the ocean often receive supplies fron
Helicopters can be used to rescue people in hard-to-reach a
Choose the main idea that ties all the details together.
Answer:
In astronomy, the geocentric model (also known as geocentrism, often exemplified specifically by the Ptolemaic system) is a superseded description of the Universe with Earth at the center. Under the geocentric model, the Sun, Moon, stars, and planets all orbited Earth.
Explanation:
Answer:
Sakoku (??, "closed country") was the isolationist foreign policy of the Japanese Tokugawa shogunate (aka Bakufu) under which, for a period of over 220 years, relations and trade between Japan and other countries were severely limited, nearly all foreign nationals were barred from entering Japan and common Japanese. From 1633 until 1853, the military governments of Japan enforced a policy of sakoku or 'closed country' which prevented foreigners from entering Japan on penalty of death, and prohibited Japanese citizens from leaving.
