megan1403
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GCSE Geography (Ecosystems) Quiz on Ecosystems, created by megan1403 on 02/06/2013.

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megan1403
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Ecosystems

Question 1 of 4

1

How does biomass (plants and organisms) become litter (layer of vegetation on surface of the soil).

Select one of the following:

  • Plants and organisms die.

  • Plants and organisms eat the soil.

Explanation

Question 2 of 4

1

How does litter (layer of vegetation on surface of the soil) become soil?

Select one of the following:

  • Nutrients taken in as plants grow.

  • Nutrients released as plants decompose.

Explanation

Question 3 of 4

1

What comes in and goes out to create soil?

Select one of the following:

  • Some nutrients are added as rock is weathered, while some nutrients are lost due to leaching.

  • Some nutrients are lost as rock is weathered, while some nutrients are gained due to leaching.

Explanation

Question 4 of 4

1

How does soil enter biomass (plants and organisms)?

Select one of the following:

  • Animals eat the soil.

  • Nutrients are taken up by plants.

Explanation