Answer:
b. number of populations/land area
Explanation:
The formula to calculate population density is a very simple one, we just need the information about the land area and the number of population, and the formula is:
population density = number of populations / land area
Practically, what we do to get to the result is take the number of populations and divide it by the land area, so we get the population density.
Example:
467,012 people live in a land area of 14,111 km²
467,012 / 14,111 = 33.096
So we have 33.096 people living in one square kilometer.
They have created agencies. Those agencies created rules and regulations to stop the flow of pollution, etc.
Answer: [C]: plate tectonics .
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Answer:
A: Frozen taiga
Explanation:
Russia is the largest country in the world, and its land has several different characteristics. One of them though dominates by far, and that is the taiga, which is occupying more area than all of the other biomes in the country combined.
The taiga is stretching across all of the country from west to east, while the rest of the biomes are north and south of it. The land is covered with dense coniferous forests, representing the largest continuous forest in the whole world.
The taiga is not the most pleasant place for living though. The majority of the year is winter, and the temperatures are extremely cold, and in some parts of it they are as low as in Antarctica. There is lot of snowfall, usually several meters deep. The short summers are mild and very humid. Everything defrosts so big portion of the taiga is becoming marshy.