Which factors are used to characterize a biome, such as the desert, tropical rain forest, or temperate grasslands? Select all of the answers that apply.
A. biotic factors, such as plant and animal life
B. abiotic factors, such as climate and soil
C. precise lines of latitude and longitude
D. levels of greenhouse gases in the atmosphere

Biotic factors are those which are living organisms that shape an environment. The examples of biotic factors are aqueous plants and animals.

Abiotic factors are those which are non living and helps shape the environment. The examples of abiotic factors are rain, sunlight, soil and water.

Both of these factors are important to shape an environment and ecosystem.

The correct answers are :

a. biotic factors, such as plant and animal life

b. abiotic factors, such as climate and soil

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the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.