Each of the following are true statements about changes that occurred between 1800 and 1950 AD. Select one or more that could account for the direction of change in the population growth rate you calculated in the previous question. Select all that apply: Select one or more: a. Advances in mechanized farming and pest control resulted in rising crop yields per acre (more food grown per farmed acre). b. Air and water pollution that started with large-scale combustion of fossil fuel such as coal since the industrial revolution, and prior to implementation of environmental legislation as of the 1960s resulted in a rising number of associated chronic diseases such as cancer, pulmonary, and cardiovascular diseases. c. The number of children born to each mother declined from 6-10 in 1800 to 2-4 by 1950. d. Advances in medicine led to a dramatic reduction in mortality, particularly infant mortality. e. Changes in weapons technology led to dramatically higher casualty-rates also of civilians during wars, starting with the First World War. f. Technological advances, particularly in irrigation technology and industrial production of fertilizers, allowed for expansion of agriculture onto land that was previously unsuitable for growing of crops.

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Answer:

The right choices are:

c. The number of children born to each mother declined from 6-10 in 1800 to 2-4 by 1950.

d. Advances in medicine led to a dramatic reduction in mortality, particularly infant mortality.

Explanation:

The number of the children born to every  mother declined from the age 6-10 in 1800 to 2-4 by 1950. Advances in the medicine led to a dramatic reduction in the mortality, particularly infant mortality. These the option C and D are correct.

What are the impacts of the change in the direction of the population growth.?

The population growth rate is the rate of change of the population and can be estimated b the birth per women.

As per the question, the population growth of a number of children that were born to each mother had declined from the age of 6 to 10 during the 18 century to about 2-4 in the 1950s. The advancements of the medical technology lead to reducing of the death rates and hence reduced the infant mortality.

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