cycle stuff Flashcards

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1
Q

Water cycle-

A

the cycle of processes by which water circulates between the earth’s oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration.

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2
Q

Evaporation

A

the process of water turning from liquid into vapor.

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3
Q

Transpiration

A

(of a plant or leaf) the release of water vapor through the stomata (leaf.)

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4
Q

Run-off

A

water moves across/over the ground into various waterways. Occurs when there is excessive precipitation and the ground is saturated (cannot absorb any more water).

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5
Q

Precipitation

A

Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow.

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6
Q

Condensation

A

Water vapor in the air cools as it rises up and changes back into liquid form, forming clouds.

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7
Q

Carbon cycle

A

Carbon cycle

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8
Q

Decomposition-

A

Decomposition-

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9
Q

Nitrogen cycle

A

a repeating cycle of processes during which nitrogen moves through both living and nonliving things: the atmosphere, soil, water, plants, animals and bacteria.

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10
Q

Nitrogen fixation

A

the process that causes the strong two-atom nitrogen molecules found in the atmosphere to break apart so they can combine with other atoms.

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11
Q

Ammonification

A

Decomposition by bacteria and fungi break down amino acids from dead animals and waste into ammonia.

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12
Q

Nitrification

A

Nitrifying bacteria in the ground first combine ammonia with oxygen to form nitrites. Then another group of nitrifying bacteria convert nitrites and nitrates, which green plants can absorb and use.

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13
Q

Assimilation

A

the process by which plants and animals incorporate (use) the NO3- and ammonia formed through nitrogen fixation and nitrification.

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14
Q

Denitrification

A

Denitrification converts nitrates (NO3) in the soil to atmospheric nitrogen (N2) replenishing the atmosphere.

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