Explanation:
The early migrants firstly settled in America and came across Bering Straight .
Due to these diverse population , they scattered .
And the Natives developed by hunting , gathering , fishing . and started farming , and stayed at one place .
But before the appearance of the Columbian population , North America were having around 16 million Indians .
And
Thereafter , the population of Indians reduces due to the loss of battles against the spread of the White civilizations .
<span>During
the flow of the river, water force gets remains alongside the riverbanks. As
the water hits a larger body of water, the force in its flow became slow and
the sediments it picks up settled on the lowest point of the riverbed. During
the time Mississippi River and the Gulf of Mexico hits each other, sediments
are deposited and it created the South Louisiana land. In order to use this process
to rebuilt wetlands, dredged material from the Mississippi River must be used
to create alteration pipelines of sediments. This process replicates the building
process of original land and sediments deposition. </span>
The main reason is that the USA is in the Northern Hemisphere & Australia is in the Southern Hemisphere. It has all to do with the tilt of the earth as it revolves around the Sun. Summer happens in the hemisphere tilted towards the Sun, and winter happens in the hemisphere tilted away from the Sun.
