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School Stuff > Enviromental Science > Flashcards

Enviromental Science Flashcards

0
Q

Birthrate

A

The number of births in a population in a certain amount of time.

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1
Q

Estimate

A

An approximation of a number, based on reasonable assumptions.

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2
Q

Death rate

A

The number of deaths in a population in a certain amount of time.

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3
Q

Immigration

A

Moving into a population.

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4
Q

Emigration

A

Leaving a population.

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5
Q

Population density

A

The number of individuals in an area of a specific size.

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6
Q

Limiting factor

A

An environmental(

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7
Q

Carrying capacity

A

The largest population that area can support

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8
Q

Succession

A

Series of predictable changes that occur in the community overtime.

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9
Q

Primary succession

A

Series of changes that occur in the area where no soil or organisms exist.

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10
Q

Pioneer species

A

The first species to populate the area.

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11
Q

Secondary succession

A

The series of changes that occur in an area with the ecosystem has been disturbed but where soil and organisms exist.

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12
Q

Producer

A

In organism that can make its own food

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13
Q

Consumer

A

An organism that pertains energy by feeding on other organisms

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14
Q

Herbivores

A

Consumers that only eat plants

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15
Q

Carnivores

A

Consumers that eat only animals

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16
Q

Omnivores

A

Consumers that eat both plants and animals

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17
Q

Scavenger

A

Carnivores that eat the bodies of dead organisms

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18
Q

Decomposers

A

Organisms that break down Wastes and dead organisms

19
Q

Food chains

A

A series of events in which one organism eats another and obtains energy

20
Q

Food webs

A

A food web consists of many overlapping food chains in ecosystem

21
Q

Energy pyramid

A

A diagram that shows the amount of energy that moves from one level to another

22
Q

Water cycle

A

The continuous process by which water moves from the earth’s surface to the atmosphere and back.

23
Q

Evaporation

A

The process by which molecules of liquid water stored energy and change to a gas

24
Q

Condensation

A

The process by which a gas changes to a liquid

25
Q

Precipitation

A

Rain snow sleet or hail

26
Q

Nitrogen fixation

A

The process of changing free nitrogen into a usable form of nitrogen

27
Q

Biogeography

A

Description of where living things are found on earth

28
Q

Continental drift

A

The continents move with the plates in this process

29
Q

Dispersal

A

The movement of organisms from one place to another

30
Q

Exotic species

A

An organism that is carried into a new location by people

31
Q

Climate

A

The typical weather patent in an area over a long period of time

32
Q

Natural resources

A

Anything in the environment that is used by people

33
Q

Renewable resources

A

Resources that are available or are naturally replaced in a relatively short time.

34
Q

Nonrenewable resources

A

Natural resources that are not replacing his full amount of time.

35
Q

Pollution

A

The contamination of the earth’s land, water, or air

36
Q

Environmental science

A

The study of natural processes in the environment and how humans can affect them

37
Q

Clear-cutting

A

Cutting all trees at once

38
Q

Selective cutting

A

Cutting a certain species of trees

39
Q

Sustainable yield

A

Amount of renewable resources

40
Q

Fisheries

A

Areas with a large population of fish

41
Q

Municipal solid waste

A

The materials produced in homes, businesses, schools, and other places in a community.

42
Q

Incineration

A

Burning of solid waste.

43
Q

Leachate

A

A polluted liquid.

44
Q

Sanitary landfill

A

Landfills that are constructed wastes more safely.

45
Q

Recycling

A

Process of reclaiming wrong materials and reusing them to create new products.

46
Q

Hazardous wastes

A

Any material that can be harmful to human health or the environment if it is not properly disposed of.

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