What is not required for seed germination?

Correct answer: (d) Minerals

Explanation

A seed needs three things from outside to germinate:

• water (moisture), which swells the seed and activates its enzymes;
• oxygen, for respiration to release energy;
• a suitable temperature.

It does not need minerals from outside: the young seedling lives at first on the food stored in its cotyledons or endosperm. It takes up minerals from the soil only after its roots have grown.