Seeds placed deep in the soil do not germinate because they are

Unable to get sufficient oxygen

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Without sufficient food to bring the seedling to the surface

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Under pressure of overlying soil layers

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Unable to get light

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Solution

The correct option is A Unable to get sufficient oxygen
During germination rapid cell division takes place. Energy is required for cell division. This energy is obtained from oxidation. The oxygen required for oxidation is supplied by the air. So, air is necessary for seed germination. Seeds placed deep in the soil do not germinate because they are unable to get sufficient oxygen. So, the correct answer is 'Unable to get sufficient oxygen'.

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Similar questions

Seeds sown very deep in the soil fail to germinate because they
(a) cannot exert enough force to push the soil upward.
(b) do not get enough sunlight.
(c) get too much water.
(d) do not get enough oxygen.

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