Skyrocketing growth of the human population appears to be...

Skyrocketing growth of the human population appears to be mainly a result of
a. a drop in death rate due to sanitation and health care.
b. better nutrition boosting the birth rate.
c. the concentration of humans in cities.
d. social changes that make it desirable to have more children.

Key Concepts

Demographic Transition

This concept explains the shift from a regime of high fertility and mortality rates to one of low fertility and mortality rates as societies develop economically and socially. The initial decline in mortality rates, often due to improved sanitation and healthcare, is a key driver in early stages of population growth.

Mortality Rate

Mortality rate refers to the frequency of deaths in a given population. A significant reduction in mortality, particularly among infants and young children, can lead to rapid population growth as more individuals survive to reproductive age.

Public Health and Sanitation

Improvements in public health infrastructure such as better sanitation, vaccination programs, and access to healthcare have been crucial in reducing death rates. These measures prevent the spread of diseases and contribute directly to increased life expectancy and population growth.

Transcript

00:01 So for this problem, we're going to be looking at the growth of the human population.

00:04 Because as we know, every year, there are more and more humans on this floating rock that circles the sun that is totally miraculous.

00:16 But we're having more and more people that are able to sustain their life and exist on this planet.

00:26 And we need to talk about why this is the case.

00:29 Because not only the growth of the population occurring, but it's skyrocketing.

00:33 More and more people and the rate of increased people is growing as well.

00:37 So what can possibly explain this phenomenon? and let's just work through the answer options that are listed and try and make sense of everything.

00:46 So here we're talking about a drop in the death rate.

00:50 So less people are dying due to things like sanitation and healthcare.

00:58 Sanitation is just properly cleaning areas or probably medical technology and that sort of thing.

01:05 And then better health care.

01:07 Ways of preserving people that would normally die of a disease or something like that.

01:12 By normally i mean previously.

01:15 Now b we're talking about better nutrition.

01:26 So better nutrition and this could potentially increase the birth rate.

01:38 Increase the birth right.

01:39 Okay.

01:39 Now let's talk about answer option c.

01:44 The concentration of humans in cities.

01:48 So concentration of humans in cities is going up.

01:58 And then if answer option d the last one, which is, let's write that a little better, these little questionable, is going to be social changes.

02:14 I'll write delta as this triangle, which means change.

02:18 So, and more of a mathematical context, but it's okay.

02:21 Social changes that make it desirable to have more children.

02:28 So social changes make people want to have more babies.

02:34 So what we need to talk about is how all these things sort of relate.

02:42 And then, because a lot of these seem like good, they seem like viable answer options, but the key is we need to understand the best answer option and why that is the case.

02:49 So the phenomenon that we see, we need to talk about demographic transition...

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