The correct answer is - the heliocentric system.
By using the telescope, Galileo Galilei managed to observe the movements of the Sun, Moon, the planets in the Solar System, and he was mapping their movements on the sky, and also he was comparing their movements to the Earth's position. With this, he managed to notice that insted of the popular belief that the Sun, Moon, and the other planets are moving around the Earth, that it is actually the opposite of it, and that the Sun was the center of our Solar System, and that all the planets and moons were orbiting around it, while the only object that hold its position as it was initially thought was the Moon, because it orbits around our planet. So Galileo contributed to the theory of the heliocentric system.
In 1973, OPEC created a major oil crisis in Western European nations and the United States by declaring an embargo against them. The shortage of fuel disrupted businesses and limited the use of cars and other vehicles.
This examples shows interdependence because the US economy was negatively effected by the economic sanctions placed on them by countries who were part of OPEC. This resulted in long gas lines in the US, as well as limits on how much gas individuals could buy at one time.
Answer:
They reduced trade with European countries.
Explanation:
The destruction, the first world war brought to the United States changed its stance towards Europe in the following period which evident from the U.S foreign policies. They reduced trade withe European national and focused on the domestic issues. They saw the second world war as a European war and therefore took a neutral stance towards it.