Answer: Most people in the Sahel are farmers or herders. Throughout history, the people of this region have adapted to the challenge of farming and herding on marginal land in many ways.
Explanation: One adaptation was to plant crops such as millet and sorghum, which are grains that can flourish in dry places.
Both the greenhouse effect and the ozone layer depletion are caused entirely or partially because of the human activity, and they both have similar effect.
Explanation:
The greenhouse effect is a process that is caused by the so called greenhouse gasses. Those gasses are able to trap heat into the atmosphere, thus cause global rise of the temperatures. While this process is mostly caused by natural processes, the human influence has constantly been increasing.
Greenhouse gasses are:
- carbon dioxide
- methane
- nitrous oxide
- fluorinated gasses
The ozone layer is a layer that serves as a natural protector from the UV radiation. Because of the usage of several chemicals by the humans, the ozone layer has been depleted. This can cause enormous damage as increased UV radiation can be fatal for any living organism on Earth.
Ozone depleting substances:
- chlorofluorocarbons
- hydrochlorofluorocarbons
- volatile organic compounds
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The total land space of the Japanese islands is about 142,000 square miles<span>. As you can see from map 2 and map 3, it is a very small country when compared with the vast Asian mainland, or with the United States, where it is smaller than the single, although large, state of California.</span>
No barriers to trade from nation to nation
