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Author Question: An important role played by humus in the soil is: a. as a catalyst in chemical reactions by which ... (Read 68 times)

a0266361136

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on: Aug 7, 2018
An important role played by humus in the soil is:
 a. as a catalyst in chemical reactions by which plants extract nutrients from the soil.
  b. as an improver of soil structure and water retention.
  c. as a source of food for microscopic soil organisms.
  d. all of these

Question 2

The ecosystem concept can be applied on almost any scale.
 a. True
  b. False
  Indicate whether the statement is true or false


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cascooper22

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Reply #1 on: Aug 7, 2018
Answer to Question 1

D

Answer to Question 2

True


a0266361136

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Reply 2 on: Aug 7, 2018
Gracias!

kilada

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Reply 3 on: Yesterday
Excellent

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