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Assessment
Which of the following soil organisms is primarily responsible for the decomposition of organic matter?
Bacteria
Nematodes
Fungi
Earthworms
What is the role of mycorrhizal fungi in plant growth?
They increase phosphorus uptake.
They fix nitrogen in the soil.
They produce phytohormones.
They decompose heavy metals.
Soil nematodes can have which of the following impacts on plant health?
They only harm plant roots.
They help in nutrient cycling.
They completely replace the need for fertilizers.
They have no impact on plant health.
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