1
heat-trapping feature of the atmosphere that occurs when certain gases in Earth's atmosphere, such as methane, CO2, and water vapor, trap heat.
2
The process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture.
3
a person disposes, allows, or permits the disposal of litter at a place that is not an approved solid waste site, within 300' of a public highway, on a right-of-way, on other public or private property, or into water
4
waste materials, such as pesticides and leftover paints, that are harmful to human health or poisonous to living organisms.
5
The removal of trees faster than forests can replace them.
6
An increase in the percentage and in the number of people living in urban settlements.
7
energy contained in atomic nuclei. energy produced from the splitting apart of billions of uranium nuclei by a nuclear fission reaction.
8
nonrenewable energy resources—coal, oil, and natural gas—that formed in Earth's crust over hundreds of millions of years.
9
Development that meets the needs of the present without compromising the ability of future generations to meet their own needs.
10
A lower layer of the stratosphere which has a high concentration of ozone; it absorbs most of the Sun's harmful ultraviolet radiation which protects the Earth's surface.
11
Earth's air, which is made up of a thin layer of gases, solids, and liquids; forms a protective layer around the planet and is divided into five distinct layers.
12
The use of natural resources faster than they can be replenished.
13
metallic elements with a high density that are toxic to organisms at low concentrations
14
nonrenewable resource formed over hundreds of millions of years mostly from the remains of microscopic marine organisms buried in Earth's crust.
15
A body of rock or sediment that stores groundwater and allows the flow of groundwater.
16
to wash nutrients out of the soil
17
Genetically modified organism made when DNA is removed from one organism and placed within the DNA of what can be a very different organism.
