A Pipeline Is to Span a Horizontal Distance of 144

question 25

Multiple Choice

A pipeline is to span a horizontal distance of 144 feet.But the pipeline is sloped downward to promote drainage.The pipeline drops by a total of 14 feet over that span.How much lower is the pipe at the end of each 12-foot horizontal stretch? ​

• A) 1.64 feet
• B) 0.10 feet
• C) 0.56 feet
• D) 1.17 feet

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Definitions:

Environmental Resistance

Factors in the environment that limit the growth, abundance, or distribution of an organism or population.

Ecological Niche

The role and position a species has in its environment, including all its interactions with the biotic and abiotic factors.

Population

Group of organisms of the same species occupying a certain area and sharing a common gene pool.

Community

A group of interdependent organisms living together in a particular area.