The birth rate of the United States in recent years has been 12.5 births per 1000 people, and the death rate has been 8.2 deaths per 1000 people. Using these data, what was the rate of natural increase for the United States between 2015 and 2016? Now subtract this rate from the population growth rate to obtain the net migration rate. Was the United States experiencing more immigration or more emigration during this year?

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.

20: 5

explanation:

about 20% of the world's population lives in   southwest asia, but on less than 5% of the world's   land area.