Asked by Jasmine Moncure on May 02, 2024
Verified
Which soil layer, containing no organic matter and is composed of weathered rock fragments?
A) O Horizon
B) A Horizon
C) B Horizon
D) C Horizon
E) bedrock
Organic Matter
Material derived from living organisms, including plants, animals, and their by-products, decomposing in the environment.
Weathered Rock
Rock that has undergone physical or chemical breakdown due to atmospheric or biological elements, leading to changes in texture, composition, or color.
O Horizon
The O Horizon is the uppermost layer of soil, primarily composed of organic matter such as decomposing leaves and other plant material, crucial for nutrient cycling and soil fertility.
- Pinpoint and discuss the physical and chemical aspects of soil.
Verified Answer
EB
Eleonore BoutinMay 04, 2024
Final Answer :
D
Explanation :
The C Horizon is the correct answer because it is characterized by the accumulation of weathered rock fragments with little to no organic material. This layer lies beneath the A (topsoil) and B (subsoil) horizons and above the bedrock, serving as a transition layer.
Learning Objectives
- Pinpoint and discuss the physical and chemical aspects of soil.