Answer : scientists determine the absolute age of a rock in millions of years before present rather than just the age of the rock relative to the rock units around it. This information helps geologists develop more precise geological history models for the rocks and regions they study.
Explanation:
The answer to your question is carbon dioxide
Japan is a small isle chain with millions of people due to the fact it is mainly arable (It allows for agriculture), but the fact is the increase technology brings up the population of Japan. Japan is also still influx of population by World war 2, as they had MILLIONS upon MILLIONS die on different isles, lands, etc. They also had a major emigration after WWII.
Answer:
b. The terrain is mostly desert and mountains
Explanation:
Afghanistan is a country that has proved to be extremely difficult to invade, and that has been the case for thousands of years. There is one major reason for this, the geography of the country. The country is dominated by very high mountains that create rain shadow and and deserts. The mountains themselves are extremely difficult for passing through, and even if they are passed by an invading army, they will take their toll. Once the mountains are passed, an invading army would face desert, very dry climate, very few food sources and very little water, with temperatures varying from scorching hot in the summer, to freezing cold in the winter. So even if an army passes through both of these natural obstacles, when it comes to face the natives it will be too weak to invade.
Answer:
I believe the answer is A.
Explanation:
NAFTA stands for North American Free Trade Agreement. It eliminated all tariff & non-tariff barriers between the US, Mexico, and Canada.