<u>Answer;</u>
C) organic matter; rocks.
The uppermost horizon, horizon O, in this profile is composed mostly of <u>organic matter</u>, while the lower horizon, horizon C, is composed mostly of <u>rocks.</u>
<u>Explanation;</u>
-Soil contains the following major horizons, that is A B and C. Some soils may have horizon O, which may be thin or thick or even lack in some soils. This O horizon is found at the surface of many soils and normally contains organic materials at various decomposition stages. these are materials such as plants, leaves and bugs.
-C horizon is the layer that is below the B horizon. It contains larger weathered fragments or broken up-bedrock.
Diaphragm...is the muscle that helps in respiration.....there are also some other but....you said flat so diaphragm !
Explanation:
Option D is the correct option.
"These cells cause the reabsorption of bone, thus helping to regenerate bone" is the statement that <span>is correct with respect to osteoclasts. The correct option among all the options that are given in the question is the second option or option "B". I hope the answer has helped you.</span>
It's c because Atoms contain three sub-atomic particles called protons, neutrons and electrons. The protons and neutrons are found in the nucleus at the centre of the atom.
