Cyanobacteria use water, carbon dioxide, and sunlight to create their food, and expel oxygen as a by-product. The real significance of stromatolites is that they are the earliest fossil evidence of life on Earth. ... They were the first known organisms to photosynthesis and produce free oxygen.
There was westward expansion from 1900 onward in the American territory that started with Louisiana purchase.
<u>Explanation:</u>
Americans upheld the possibility of abroad extension in the late 1800's on the grounds that they needed to extend exchange and trade to Latin America, to spread majority rules system, to politically impact different nations, and grow so America has a more area.
These were the reasons why America wanted to expand it's territories and expansion of the country in the late eighteenth century more over the Louisiana purchase led to the expansion of the country. The U.S. expanded its territory largely through military conquest. Even purchases from other European powers, such as the Louisiana Purchase and Alaska.
Answer:
-_-
Explanation:
you need to put up more points for this oe something
(a) shoes were made by hand, shoes were being mass prodoced in factories
They modified their environment by digging irrigation canals.
Answer:
true
Explanation:
The Constitution of the United States outlines a social contract among the American people dating back to 1787. Its origins meet the criteria set out by Locke for the just creation of a government, and the document itself is structured to protect the natural rights of its inhabitants.
