Population Growth/Decline?
Grow or decline? Why?
A populations's birth rate is lower than its death rate.
Decline
More people are leaving than entering the population
What is one place that was urbanized?
Many answers
Who/what mainly causes global warming?
Humans
Humans have been able to increase their carrying capacity.
True/False
True
They are the only species that has done this!
How can you create less trash?
Reduce, reuse, recycle, make signs, tell people, use reusable shopping bags, etc.
Grow or decline? Why?
There are a lot of people on Earth, but not a lot of natural resources.
Decline. The population will not have what it needs.
How would deforestation affect the atmosphere?
More CO2 in the atmosphere, less O2
Increased greenhouse gases trap heat and create a warming pattern on Earth. What do we call this warming?
What are two ways a higher population could impact Earth?
More deforestation, more urbanization, more CO2, less natural resources, etc.
What are energy sources that can be reused an unlimited amount called?
Renewable
Grow or decline? Why?
The population's birth rate is higher than its death rate.
Grow
There are more people entering than leaving the population.
What are two effects of deforestation?
Erosion, loss of habitats, more CO2, less O2, hotter temperatures, drier climates, etc.
When _____ are found in the atmosphere they can cause global warming.
Greenhouse gases
What do all living things need to survive?
Hint: Vocab word!
Natural resources
What are some examples of renewable resources?
Solar, wind, water, etc.
Grow or decline? Why?
Earth's population reaches its carrying capacity and continues to grow.
Decline.
There are not enough resources for the whole population.
During what process do trees take CO2 out of the air?
Photosynthesis
What is a natural thing that can cause global warming to occur?
Volcanic eruptions, el Nino, naturally occurring greenhouse gases
What is carrying capacity?
The maximum amount of a population that Earth can support given the natural resources that it has.
What is a technology that humans created to increase Earth's carring capacity?
Grow or decline?
More medical care becomes available.
Grow
People are healthier and can live longer
You can prevent deforestation by measuring/decreasing your ________, which is the amount of resources you use and the waste that you make.
Ecological footprint
What are greenhouse gases that come from aerosols, like hairspray, called?
CFCs
Chloroflorocarbons
When resources in one area run out, what do people do?
Immigrate to a new area
(or the death rate increases)
What can YOU do to help the environment?
Reduce, reuse, recycle, turn off the lights when you are not using them, not litter, make signs, protest, etc.