DENDROLOGY

Detailed explanation-1: -Light is not necessary for a seed to germinate, no. The majority of seeds grow most effectively in the dark. Light, which is essential for seedling growth, may actually hinder the germination process. The three primary and necessary conditions for a seed to germinate are water, oxygen, and temperature.

Detailed explanation-2: -When seed absorbs water, all the chemical reactions begin and reserve food material is mobilized. The parts of the embryo undergo constant cell division required for growth. All these activities have high demands of oxygen and hence oxygen is necessary for the germination of seeds.

Detailed explanation-3: -Light serves as an external trigger for the seed germination process, and some plants would not sprout till light shines on them.