Answer: SUBMARINE CABLES
Explanation:
Submarine Cables or Submarine Communications Cables were first developed in the 1850s to carry telegraphy information cables laid on the sea bed with the purpose of connecting stations on land.
Modern cables use optic fibre technology to carry telephone, internet (including email) and even encrypted data.
For extra information the submarine cable connecting the United States to Europe is known as MAREA. It is 6600 km long and connects the United States to Spain.
Answer:
The English colonies weren't too far spread apart to not provide protection (arguably due to the Proclamation of 1763 which halted English expansion into America), was hospitable, provided ample land suitable for farming, and was along the coast to allow easy trade with the Caribbean or Europe. All these reasons helped them grow in population.
Answer:
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The correct answer is the plow. When the plow was invented agriculture was made much easier which enabled people to settle around and make surplus of food. This enabled them to trade with others and increase the size of the cities and the rest is history.