Solution:Thomas Robert Malthus was the first thinker to formulate a systematic theory on the relationship between population and resources. Malthus traveled to Britain and several other Western European countries, collecting data, and presented his population theory in a scientific form. The analysis of Malthus's population theory is based on the following headings: Geometric Increase in Population - According to Malthus, population grows in geometric or geometric proportions (1:2:4:8:16, etc.). According to him, in the absence of any constraint (natural or artificial), the population doubles in 25 years.
Arithmetic Increase in Food - According to Malthus, human food supplies gradually increase in arithmetic order (1, 2, 3, 4, etc.). The law of diminishing returns applies to agriculture, leading to a decline in agricultural production after a certain limit. Imbalance between population and food items - Due to the difference between the growth rate of food items and the growth rate of population, the gap between the two increases, which leads to imbalance in population and means of livelihood. Measures for population control - According to Malthus, rapidly increasing population can be controlled by both natural and artificial methods. Hе included epidemics, famine, war, floods, earthquakes etc. in natural control, whereas by restrictive control (artificial) he meant self-restraint, observance of celibacy, not marrying or marrying late, etc. Hence, statements (A), (C) and (E) are not correct.