Author Question: ____________________ is an important constituent of soil and provides nutrients to plants and ... (Read 101 times)

WhattoUnderstand · **on:** Jul 13, 2018

___________________ _ is an important constituent of soil and provides nutrients to plants and increases the ability of the soil to retain ___________________ _.
Fill in the blank(s) with correct word

Question 2

Corals became dominant reef-builders in the ____.
A)Cambrian
B)Ordovician
C)Silurian
D)Carboniferous
E)Permian