Adivide as it relates to earth science is the
a. rate of precipitation that exceeds infiltration.
b. elevated land area that separates one watershed from another.
c. stream that flows between two trees.
d. largest river system possible.

B. elevated land area that separates one watershed from another. for example a mountain range between two river valleys

Competition. interaction among organisms that compete for the same natural resource (food, shelter, water, space) in an ecosystem. predation. an interaction in which one organism kills another for food. predator. prey. symbiosis. mutualisum. commensalisum. parasitisum.

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