Answer: Option(b) is correct
Explanation:
According to the concept of Malthus and Marx , they had different opinions and ideas for source of poverty , misery, overpopulation and other social aspect in society. Malthus believed that poverty and low food supply, hunger are caused by overpopulation and Marx stated that these situations are result of capitalist economy.
Other options are incorrect because theories generation by combining, didn't have similar beliefs and did not concern severeness in issue of overpopulation, social poverty etc.Thus, the correct option is option(b).
Answer:
The amount of time spent with friends is a third-variable problem.
Explanation:
Third variable problem is a term that describes a type of mix up or confused conclusion where by, third variable leads to a confound causal relationship between two other variables.
In this case, June found that social media use is actually not associated with the feeling of loneliness, because the third variable is actually the cause or have the direct relationship to the feeling of loneliness.
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Explanation:
<span>Many intellectuals and many of those working in development believe that the size of the world's population and its accelerated growth is the greatest problem and the gravest threat to humanity. Clearly, the ratio of the number of people to the amount of food available has an impact on nutrition, but how do these two factors interact? At the end of the eighteenth century the British political economist Thomas Malthus speculated that population growth could soon surpass production and food supply. By the end of the twentieth century, this had not happened, but malnutrition was widespread.</span>