Answer:
The oil sands are a strategic resource that contributes to economic opportunity and energy security for Canada, North America and the global market. The oil sands comprise 167.2 billion barrels of crude oil – 97 percent of Canada’s 172.5 billion barrels of proven oil reserves – and are a vital part of the Canadian economy.
Source: nrcan.gc.ca
Temperatures at high latitudes are usually lower than temperatures near the equator because <span>the solar energy must be spread over a larger area.
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<span>In the tropics, places near the equator, temperature is high because there is a net energy surplus. Net energy surplus occurs because the amount of sunlight absorbed is larger than the amount of heat radiated.
In the polar regions, places near the pole or high latitudes, temperature is low because there is an annual energy deficit. The annual energy deficit occurs because the amount of heat radiated to space is larger than the amount of absorbed sunlight.</span>
Answer:
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Explanation:
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Answer:</h2>
Demography is the study of human population.
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Explanation:</h2>
Demography studies most if not all aspects about human population. It checks births, death, sex, migration, etc. and in turn, when we describe the population, it is normally from pertaining to demographic. Demography is also involved in other disciplines such as sociology, economics, statistics, etc.
Through demographics, the necessary departments get to understand people and their needs better. Countries economic decisions is one example that depends on demographic studies. It also affects other areas such as the planning, labor markets analysis, and etc.
Answer: The glacial-interglacial cycle is triggered by changes in Earth's orbit around the Sun, and, as a result, there is approximately 100,000 years between interglacials (or glacials).
Explanation:
