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leaching and eutrophication Flashcards

(10 cards)

1
Q

What is leaching?

A

Where large amounts of fertiliser is washed away into rivers and lakes

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2
Q

What does leaching cause?

A

Eutrophication

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3
Q

What is eutrophication?

A

A large increase of nutrients in an aquatic ecosystem

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4
Q

What is the first stage after leaching?

A

Increased concentration of nitrogen and phosphorous in water

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5
Q

What is the next stage after increased nitrogen and phosphorous?

A

Algae bloom on surface of the water

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6
Q

What is the next stage after algae bloom?

A

Prevents light reaching submerged aquatic plants

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7
Q

What is the next stage after light is prevented from reaching plants?

A

Both algae and plants die

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8
Q

What is the next stage after algae and plants die?

A

Increased decomposition by saprobionts

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9
Q

What is the next stage after increased decomposition?

A

Saprobionts use up all the oxygen

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10
Q

What is the next stage after saprobionts use up oxygen?

A

Lack of oxygen causes organisms to die

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