During the second half of the 20th Century, a consensus emerged among North American archaeologists that the Clovis people had been the first to reach the Americas, about 11,500 years ago. This is the way America got populated.
<h3>What are major changes occurred in America's population?</h3>
In 2006, America's population reached 300,000,000 inhabitants. According to the estimates of the US Census Bureau, at the end of 2019 the American population will exceed 330 million people. As can be seen, it is a population in constant increase, both for its positive birth rate and for the high rates of immigration that arrive in the country every year. With these numbers, a percentage of annual population growth of 0.62% is determined.
This amount of population makes the United States the third most populated country in the world, only behind China and India (which have 1.4 billion and 1.35 billion inhabitants, respectively).
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The Sahel<span> is the zone of transition, in Africa.</span>
The Correct Answer is B
B) Food insecurity will increase.
Ex. The Population Will Increase If The Trend Continues and When The Population Reaches The Dark Shading, Then That's Over Populated and Means People Are Gonna Need More Food To Stay Alive and So The Population Can Keep Growing.
Answer:
Arctic is degrading fast while antarctica is degrading slowly both by air and water.
Explanation:
- Its true that most of the arctic and the Antarctic ice sheets have melted and the earth surges steadily towards the dangerous wrath of the planet, various reports have given proof that the arctic ice or that of the north pole melting fast at an alarming rate as the altitudinal conditions and the impacts of the climate changes are more profound in this region.
- With the rise of temperature of more than 1.8° F, in the past decades, the temperature of this region the current rate of the greenhouse emission has destroyed about 90% of the ice that is left. And is projected to a 3.7° F rise as the threshold of the impact of man activities.
- <u>Antarctica, on the other hand, is not fast as arctic but thew studies have shown that is somewhat similar to average global warming. The antarctic absorbing up the heat from the southern ocean water bodies. Also in the past years, the invasion of species and the uneven cooling has led to 2 °C warming of the continent.</u>
