They're used by humans for fossil fuel and in entertainment. They were not created by the human race, they were created through thousands of being underground and soft tissues quickly decompose leaving the hard bones or shells behind. Over time sediment builds over the top and hardens into rock.
Answer:
Trade along the silk road.
Explanation:
Because the silk road spread for a very long distance it united people through trade and technological advancement came faster than ever.
THE HOLLYWOOD'S Amazing Disney studios helped the Americans in their war time of 1942 to 45 in making many war training and propaganda movies which attract a lot of supporters towards America in world war 2. they have made films for almost for ever department of American Army.
Answer:
Explanation
We can learn that we should always stand up and exercise our freedom of speech. Another lesson we learned from the protests in the 1960s is that our government is not always right, and we can make a change if we take action.