EVOLUTION
DARWIN’S THEORY OF NATURAL SELECTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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population increased arithmetically while food production increased geometrically.
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the world’s rate of population increase was higher than the development of food supplies.
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moral restraint was producing lower crude birth rates.
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population growth was outpacing available resources in every country.
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Detailed explanation-1: -In short Malthus theory predicts that if population grows much faster than food production, the growth is checked in the end by famine, disease, and war, a process that is called the Malthusian Crisis .
Detailed explanation-2: -Malthus’ most famous work was his Essay on the Principle of Population, first published in 1798 and enlarged in later editions. This work contained his famous argument that human populations tend to grow faster than agricultural output, resulting in famines or crises.
Detailed explanation-3: -Malthusian Theory: Malthus stated that population increased in a geometric progression (ie., 2, 4, 16, 132…) while food production increased in arithmetic progression (ie., 2, 4, 6, 8…). Thus population grew faster than food production and tended to outstrip it in a short time.
Detailed explanation-4: -Thomas Malthus warned that without any checks, population would theoretically grow at an exponential rate, rapidly exceeding its ability to produce resources to support itself. Malthus argued that an exponentially growing population will self-correct through war, famine, and disease.
Detailed explanation-5: -Answer and Explanation: The answer is A). In the Malthusian model of economic and population growth, the economy goes through a growth cycle and a contraction cycle. In the growth cycle, people in the economy has ample resources on a per person basis, so the economy expands and so does population.