Fine-graned rocks formed on earth crust are called________?

Amino acid with no polar R group are________?

The depth before the jump is always less then the depth after the jump. The depth before the jump is called initial depth and depth after the jump is called________?

The first organisms to appear on the earth were more like plants than animals because________?

The nutrient element silicon (Si) is:________?

Which nutrients are immobile in plants?