Test 2 Flashcards

Question

Nuclear fusion

Answer 1

nuclear reaction in which two or more atomic nuclei collide at a very high speed and join to form a new type of atomic nucleus. During this process, matter is not conserved because some of the matter of the fusing nuclei is converted to photons (energy).

Answer 2

Woody fuels, forestry residues, milk residues, agricultural residues

Answer 3

power derived from the energy of falling water and running water, which may be harnessed for useful purposes.

Answer 4

photovoltaic (PV) panels convert the sun's rays into electricity by exciting electrons in silicon cells using the photons of light from the sun.

Answer 5

is a specialized semiconductor diode that converts visible light into direct current (DC). Some PV cells can also convert infrared (IR) or ultraviolet (UV) radiation into DC electricity.

Answer 6

the heat from the Earth. It's clean and sustainable. -range from the shallow ground to hot water and hot rock found a few miles beneath the Earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma.

Answer 7

extracted from air flow using wind turbines or sails to produce mechanical or electrical power. Windmills are used for their mechanical power, windpumps for water pumping, and sails to propel ships.

Answer 8

Once the wind turbine is built the energy it produces does not cause green house gases or other pollutants.

Answer 9

The strength of the wind is not constant and it varies from zero to storm force. This means that wind turbines do not produce the same amount of electricity all the time. There will be times when they produce no electricity at all.

Answer 10

a naturally occurring solid material from which a metal or valuable mineral can be profitably extracted.

Answer 11

low organic matter, loss of soil structure, poor internal drainage, salinisation and soil acidity problems are other serious soil degradation conditions that can accelerate the soil erosion process

Answer 12

is the process whereby natural forests are cleared through logging and/or burning, either to use the timber or to replace the area for alternative uses.

Answer 13

type of land degradation in which a relatively dry land region becomes increasingly arid, typically losing its bodies of water as well as vegetation and wildlife

Answer 14

process by which water-soluble salts accumulate in the soil.

Answer 15

land consisting of marshes or swamps; saturated land.

Answer 16

body of water formed where freshwater from rivers and streams flows into the ocean, mixing with the seawater. Estuaries and the lands surrounding them are places of transition from land to sea, and from freshwater to saltwater

Answer 17

vegetation composed primarily of cone-bearing, needle-leaved, or scale-leaved evergreen trees, found in regions of the world that have long winters and moderate to high annual precipitation.

Answer 18

dominated by trees that lose their leaves each year. They are found in areas with warm, moist summers and mild winters

Answer 19

commonly known as tropical rainforests, are forests which receive high rainfall (more than 2000 mm, or 80 inches, annually) throughout the year. These forests occur in a belt around the equator,

Answer 20

termed primary forest, virgin forest, primeval forest, late seral forest, or in Britain, ancient woodland) is a forest that has attained great age without significant disturbance and thereby exhibits unique ecological features and might be classified as a climax community.

Answer 21

meets the needs of the present without compromising the ability of future generations to meet their own needs.

Answer 22

the action of conserving something, in particular.

Answer 23

An economic problem in which every individual tries to reap the greatest benefit from a given resource. As the demand for the resource overwhelms the supply, every individual who consumes an additional unit directly harms others who can no longer enjoy the benefits.

Answer 24

Captain more was coming home from a sailing race and he came upon a bunch of debris. Heavy currents hold trash between Hawaii and Japan

Answer 25

the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.

Answer 26

the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms.

Answer 27

community of living organisms (plants, animals and microbes) in conjunction with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system.

Answer 28

a linear sequence of links in a food web starting from "producer" species (such as grass or trees) and ending at apex predator "decomposer" species (like grizzly bears or killer whales).

Answer 29

way to calculate the impact of humans on the environment. IPAT is an equation that expresses the idea that environmental impact (I) is the product of three factors: Population (P), Affluence (A) and Technology (T).

Answer 30

Icecaps and glaciers

Answer 31

Largest underground water supply in the US , it is starting to deplete

Answer 32

Army corps of engineers turned it into a straight canal, eliminating wetlands, degrading bird and fish populations

Answer 33

Surface area and the volume of water has both gone down | Government has made a dam and dikes which has made the fish stock go up and the sea has risen

Answer 34

Pollution originating from a discrete source, such as a smoke-stack or the outflow from a pipe

Answer 35

Pollution from a broad area such as one of the fertilizer or pesticide application, rather that from a discrete source

Answer 36

Lead , mercury, nitrates , phosphates

Answer 37

Acid mining drain,metal contamination, and increased sediment levels in streams

Answer 38

The combustion of gasoline and other hydrocarbon fuels in automobiles, trucks, and jet airplanes produces several primary pollutants: nitrogen oxides, gaseous hydrocarbons, and carbon monoxide, as well as large quantities of particulates, chiefly lead.

Answer 39

air pollutant emitted directly from a source

Answer 40

is not directly emitted as such, but forms when other pollutants (primary pollutants) react in the atmosphere.

Answer 41

rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions

Answer 42

acidification of lakes and streams and contributes to the damage of trees at high elevations

Answer 43

a species of animal or plant that is seriously at risk of extinction.

Answer 44

one which has been categorised by the International Union for Conservation of Nature as likely to become endangered unless the circumstances threatening its survival and reproduction improve.

Answer 45

which are vulnerable to endangerment in the near future.

Answer 46

end of an organism or of a group of organisms

Answer 47

A plant , an animal or anther organism that has been deliberately or inadvertently introduced into an ecosystem in which it did not evolve

Answer 48

accumulation of substances, such as pesticides, or other chemicals in an organism.

Answer 49

occurs when the concentration of a substance, such as DDT or mercury, in an organism exceeds the background concentration of the substance in its diet

Answer 50

pejorative characterization of opposition by residents to a proposal for a new development because it is close to them, often with the connotation that such residents believe that the developments are needed in society but should be further away.

Answer 51

waste that is dangerous or potentially harmful to our health or the environment.

Answer 52

electronic products that have become unwanted, non-working or obsolete, and have essentially reached the end of their useful life.

Answer 53

Inconvenient Lack of space To confusing

Answer 54

geologic repository designed to store and dispose of spent nuclear fuel and high-level radioactive waste.

Answer 55

dioxin contamination | A boy got in trouble and had to cover the roads with oil to control the dust but the oil was full of dioxin

Test 2 Flashcards

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