pollution pt 1
give an example of renewable and nonrenewable sources
renewable: trees, water, solar
nonrenewable: fossil fuels
define popullation
given amount of people in an area at a certain time
what is a natural resource
- a resource that the earth makes
what is the difference between renewable and nonrenewable resources?
renewable- can be made again
nonrenewable- cannot be made again
what two rates make up the population
- birth rate
- death rate
the act of clearing trees is called...
deforestation
what are the three types of fossil fuels
oil
coal
natural gas
if 500 people were born in january, and 450 people died. Is the population growing or shrinking
growing
what kind of gas do plants release, what kind do they take in?
-oxygen
- carbon dioxide
give an example of energy pollution
light energy
when there are too many people in an area for the resources this is called..
overpopulation
what are 2 positive effects trees have
- habitat for animals
- release oxygen
- aid in water cycle
what was the Chernobyl event
- when a nuclear power plant "exploded" and released radiation to the surrounding town
- an example of energy pollution
exponential, expands on itself
what are the steps of water cycle
evaporation- liquid to gas
condensation-form clouds
precipitation- gas to liquid
runoff- water collection