At first, it was thought that the Earth's atmosphere consisted of hydrogen compounds—methane, ammonia and water vapour—and that life began under such reducing conditions, which are conducive to the formation of organic molecules
C. It needs oxygen in order to happen
Positive Geotrophism is referring to the plant’s angle leading to the roots growing downward into the soil. Negative Geotrophism is referring to the plant’s leaves moving away from the earth, up towards the sun in order to receive substantial sunlight.
Dermal tissue<span> makes up the outer layers of the plant it also contains epidermal cells coated with a waxy layer. This waxy coating is called the cuticle. </span><span>
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