Q4.19. Roads often decrease dispersal rates for animals and can divide patches in two. How might these consequences of building roads affect the survival of a metapopulation?

A. Roads should generally increase metapopulation survival by dividing patches and thereby creating more potential populations.
B. Roads should generally increase metapopulation survival by reducing dispersal, which increases survival of individual patches.
C. Roads should generally decrease metapopulation survival by reducing dispersal, which decreases recolonization of patches.
D. Roads should generally decrease metapopulation survival by dividing patches, which increases immigration rates.

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.