A species that naturally belongs to a particular ecosystem (Species that are originally found in a certain area).

species that enter new ecosystems and multiply, harming native species and their habitats

A species whose numbers are so small that the species is at risk of extinction

A resource that is available in infinite amounts and can be replaced faster than it is used

a resource that is only available in finite amounts and that cannot be replaced as fast as we use it

damage to the natural environment caused by harmful substances

Protective layer in atmosphere that shields earth from UV radiation.

Nonrenewable resources that formed from the remains of ancient plants and animals

Gases in Earth's atmosphere that trap heat near the surface

An increase in Earth's average surface temperature caused by an increase in greenhouse gases

The trapping of heat by the planet's atmosphere (look at the picture)

a change in global or regional climate patterns

loss of sea ice

way of looking at how one individual contributes to the increase in CO2 levels

destruction of forests

If deforestation increases -> the amount of trees will decrease -> the amount of carbon dioxide in the atmosphere will increase -> more heat will be trapped in the atmosphere -> earth's temperature will increase (global warming) ---> domino effect

a barrier forms and prevents an organism from accessing its entire home range

a pollutant moves up the food chain as predators eat prey, accumulating in higher concentrations in the bodies of predators

A larger number of plant species means a greater variety of crops and new sources of medicine

How people apply scientific knowledge to modify the world around them to meet their needs or to solve problems

material used to kill insects/pests (cide=kill)