What is the effect of a lack of nitrate ions on plant leaves? А All leaves turn very dark green.
B Leaves lose their yellow colour.
C The leaves wilt.
D Young leaves grow very slowly.

Explanation:

Nitrate deficiency

Without nitrates, the amount of chlorophyll in leaves reduces. This means leaves turn a pale green or yellow colour. This reduces the plant's ability to photosynthesise and grow properly, which reduces the farmers' crop yield .

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the cell cycle is the final answer! : )