How did the Americans coming from the north add to the difficulties of the British army? A) by placing gunboats on all the rivers

B) by placing cannon on all the mountain tops

C) by burning bridges and chopping down trees to block paths

D) by refusing to sell them grain and cattle

I think it's B) by placing cannon on all the mountain tops.

Explanation:

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2. a land bridge connected asia and north america thousands of years ago.

4. crossing the land bridge would have been simple for the first migrants.

5. people might have crossed a land bridge while hunting animals.

answer

wages and job opportunities have grown slowly since the recovery began five years ago, while technology continues to change the nature of work. while many workers enjoy opportunities unimaginable a generation ago, many others feel the economy has left them b

explanation: