Answer:
It is
Explanation: Once an American flag touches the ground it has to be retired. (By burning it)
I believe the answer would be C, burning fossil fuels. Oil and gas is made up of the remains of microscopic plankton. Over millions of years the remains become the carbon-rich coal, oil and gas we can use as fuel. When fossil fuels are burned they release carbon dioxide into the atmosphere, thus contributes to global warming.
<span>Una de las principales razones fue el comienzo de la era Industrial, que trajo una repentina oleada de inmigración.</span>
The correct answer should be
<span>c. They developed in almost total isolation from the rest of the world
Only in the new century was it made possible to discover them when shipping became developed enough to allow people to cross into the new continent. They developed isolated from everyone and only ever met other American tribes from time to time.</span>
