Which of the Following Best Describes the Composition of Healthy

Multiple Choice

Which of the following best describes the composition of healthy soil?

A) Soil is primarily mineral matter (approximately 72%) ,but also consists of organic matter (10%) ,and water (18%) .
B) Soil consists of approximately 45% organic matter,50% mineral matter,and 5% water and/or air.
C) Soil is composed of about 45% mineral matter,5% organic matter,and 50% pore space containing air and water.
D) Soil includes pebbles,gravel,cobbles,and a varying combination of sands,silts,and clays.
E) Soil contains three important ingredients,organic matter (50%) ,inorganic material (45%) ,and air (5%) .