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Test (elaborations) Biology Biology First, ISBN: 9780199147311
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it will give you information about science
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BIOLOGYWHERE DOES FOOD COME FROM ?
Q1: What are the fertilizers?
ANS: A fertilizer is any material of natural
elements that are applied to soil to supply one or
more plant nutrients essential to the growth of
plants.
Q2: Explain the difference between
fertilizers and manure?
ANS: Fertilizers are inorganic while Manure is
organic. Fertilizers contain gases and minerals
such as Nitrogen and phosphorus. Manure contains
carbon.
Q3: Explain why a plant need nitrogen,
potassium, phosphorus?
ANS: Nitrogen is used by plants for lots of leaf
growth and good green color. Phosphorous is used
by plants to help form new roots, make seeds,
fruit and flowers. It's also used by plants to help
fight disease. Potassium helps plants make
strong stems and keep growing fast.
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