What is soil? How does it form?

What is soil? How does its various components effect the flora of a place?

What is associated colloid? How does it form micelle?

What is meant by soil? How is soil formed?

What is the name of the cavity formed in the gastrula? How does it form in the embryo?

What are the factors affecting organic matter levels in soil? How does level of organic matter can be increased?

How does an aster form?