Which statement best describes the populations of countries in the Sahel?

1 answer:

8 0

The Sahel part of Africa includes (from west to east) parts of northern Senegal, southern Mauritania, central Mali, northern Burkina Faso, the extreme south of Algeria, Niger, the extreme north of Nigeria, central Chad, central and southern Sudan, the extreme north of South Sudan, Eritrea, Cameroon, Central African Republic and the extreme north of Ethiopia

Traditionally, most of the people in the Sahel have been semi-nomads, farming and raising livestock in a system of transhumance, which is probably the most sustainable way of utilizing the Sahel. The difference between the dry North with higher levels of soil nutrients and the wetter South with more vegetation, is utilized by having the herds graze on high quality feed in the North during the wet season, and trek several hundred kilometers to the South to graze on more abundant, but less nutritious feed during the dry period

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Question 1

The correct answer is: "FALSE".

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R= price * quantity

According to the formula, if the term "price" increases, R would increase too. But an increase in price usually decreases the amount demanded by consumers of a certain product. Therefore, if quantity demanded drops in a higher proportion than the increase in price, the final total revenue would decrease. So the final effect depends on the size of the two variations.

Question 2

The determinants of demand are the following:

Price: inversely related to the quantity demanded, as the larger the price the smaller the amount demanded of a product.
Income of consumers: directly related. The larger the income earned by an economic agent, the larger the amount demanded of a normal good (there are exceptions, such as inferior goods, for which income and demand are inversely related).
Prices of related goods of services. If two goods are substitutes, the increase on the price of one, decreases the amount demanded of that product but increases the amount demanded of the other product. It two goods are complements, the increase in the price of one good decreases the amount demanded of it, and the amount demanded of the other product too.
Tastes or preferences of consumers. If a product is in line with the general preferences of consumers the amount demanded will be large.
Market expectations. For example, if a price is expected to rise, consumers might prefer to buy now and therefore demand increases at the moment.

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