Bio Ch. 626 cards

Tagged as: history, nursing, medical, geography, algebra, math, biology, earth

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1

agriculture

the practice of farming

2

monoculture

forming strategy in which large fields are planted with a single crop year after year

3

green revolution

development of highly productive crop strains and the use of modern agricultural techniques to increase yields of food crops

4

renewable resource

resource that can regenerate quickly and that is replaceable

5

non- renewable resource

resource that cannot be replenished by natural processes

6

sustainable development

using natural resources at a rate that does not deplete them

7

soil erosion

wearing away of the surface soil by water and the wind

8

desertification

a process that turns fertile land into a desert due to draught and overgrazing

9

deforestation

destruction of forests

10

aquaculture

the raising of aquatic organisms for human consumption

11

smog

mixture of chemicals that occur as a gray-brown haze in the atmosphere

12

pollutant

harmful material that can enter the biosphere through the land, air, or water

13

acid rain

rain containing nitric acids and sulfuric acids

14

biodiversity

the sum total of the variety of organisms in the biosphere

15

ecosystem diversity

variety of habitats, living communities, and ecological processes in the living world

16

species diversity

number of different species in the biosphere

17

genetic diversity

sum total of all the different forms of genetic information carried by all organisms living on earth today

18

extinction

disappearance of a species from all parts of its geographical range

19

endangered species

species whose population size is rapidly declining and will become extinct if the trend continues

20

habitat fragmentation

splitting of ecosystems into small fragments

21

biological magnification

increasing concentration of a harmful substance in organisms at higher tropic levels

22

invasive species

plants and animals that have migrated to places where there are not native

23

conservation

wise management of natural resources including the preservation of habitats and wildlife

24

ozone layer

atmospheric layer in which ozone gas is relatively concentrated

25

global warming

increase in the average temperatures on earth

26

Human activities that affect the biosphere

-hunting and gathering -agriculture -industry and urban development