The majority of Americans work in the service industry. Technology is rapidly advancing and is a high job demand. Hope this helps. ;)
Answer: The Great Barrier reef is 2,300 kilometers long (1,400 miles) located at the coast of Australia
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Changes in the orbit of the earth caused the ice sheets to spread across Canada.
Answer:
The type of rock can tell you if the land was formed by layers of sediment, lava, etc. Fossils can show how old they are and therefore how old the land around it is
Explanation: