Which of the Following Best Describes the Composition of Soil

Multiple Choice

Which of the following best describes the composition of soil?

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