The answer is: [C]:
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"the number of people who live in a square mile or kilometer" .
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Let us examine the other answer choices:
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Answer choice: [A]: "</span><span>an increase in the number of people living in an area over time" — refers to: "population growth".
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Answer choice: [B]: "<span>a decrease in the number of people living in an area over time" — refers to: "population decline"; or, "depopulation".
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Answer choice [D]: "</span>the number of live births per one thousand people in a year" — refers to: "birth rate". (as opposed to: "the number of deaths per one thousand in people in one year" — which refers to the "death rate"; or, "fatality rate").
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This region is most likely a part of the tundra biome. Tundra biomes can have the conditions that are listed such as low average temperatures year round, very little precipitation, and this region supports only small plants and a few animal species. Specifically plant life in Tundra regions are usually low to the ground with very few trees because of the flat area and the harsh winds that blow through these regions. This region is also most likely an arctic tundra due to the very low temperatures.
The most logical answer sounds like D.
If it grows underwater then of course it's able to withstand water. <span />
Answer:
Spain by "then" will be a depopulated nation dominated by elderly and single people,the country will have lost 5.3million inhabitants, or 11% of the current population, by the middle of the century. If the trends continue, by then the over 65s will make up 34.6% of the population while close to a quarter of a million Spaniards will be over 100yrs old.By that date there will be 1.7million fewer children under 10 than there are now.....
