materials and organisms that are found in the biosphere including minerals, fossil fuels, organisms, clean air and clean water
natural resources
100
approach to using natural resources at a rate that allows natural recycling while preserving the long-term environment
sustainability
100
adding natural predators, such as ladybugs to eat aphids, to a degraded ecosystem
biological augementation
100
basic building blocks of matter
atoms
100
Chemical bonds are made of _____.
electrons
200
an organism that plays a large role in an ecosystem, a decline in this species can be devastating to an ecosystem
keystone species
200
resources that are replaced naturally faster than they can be consumed
renewable resources
200
Mstates have laws and regulations in place to help protect species that may be _____ or _____.
endangered or threatened
200
positively charged parts of the atom
protons
200
a chemical bond made of 2 shared electrons
covalent bond
300
occurs when fertilizers, animal wastes, sewage or other substances rich in nitrogen and phosphorus flow into waterways and cause extensive algae growth
eutrophication
300
resources that are not replaced faster than they are consumed such as fossil fuels and forests
nonrenewable resources
300
Corals are very vulnerable due _____ and ______.
bleaching and sediments
300
negatively charged parts of the atom
electrons
300
chemical bond made of electrons that are transferred
ionic bond
400
pollution produced due to sulfur dioxide or nitrogen dioxide reacts with water to form a detrimental effect on soil and plants, removes calcium and potassium from soil
acid precipitation or acid rain
400
species found only in a specific geographic area
endemic species
400
____ prevent overexploitation and reduce the chances of habitat destruction, pollution or fragmentation.
Reserves
400
atoms of the same element that different numbers of neutrons and different masses, and sometimes used in medical diagnosis, for example barium
isotopes
400
Table salt is a _____ compound.
ionic
500
increasing in concentration of toxic chemicals in larger consumers due to small amounts of toxin the food chain
biological magnification
500
use of living organisms such as bacteria, fungi or plants to detoxify a polluted area
bioremediation
500
Explain why some species are in danger of extinction.
overexploitation and loss of habitat
500
pure substances that are made of two or more different elements such as water and salt