Question

1. what term refers to the living organisms in soil?

a. biota
b. ph
c. parent material
d. topography

1. what composes the organic matter in soil?

a. pieces of rock that has been split apart
b. pore spaces
c. liquids
d. decomposed remains of once living things

Explanation:

• For question 4: Biota refers to the living organisms in soil. pH is a measure of acidity/alkalinity, parent - material is the non - living starting material for soil formation, and topography is the shape of the land surface.
• For question 5: Organic matter in soil is composed of decomposed remains of once - living things. Pieces of rock are inorganic, pore spaces are voids in soil, and liquids are not the main component of organic matter.

Answer:

1. A. biota
2. D. decomposed remains of once living things