Of the Various Types of Drain Systems,open Ditch Systems Are

question 3

Multiple Choice

Of the various types of drain systems,open ditch systems are most practical and economical for use on __________.

• A)Vertisols
• B)soils which do not freeze during the winter
• C)soils with a deep water Table
• D)poorly drained soils with sandy profiles
• E)clay soils with poor drainage

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Definitions:

Non-Native Species

Species that are brought into a new habitat where they do not naturally occur, potentially causing harm to the native species and ecosystems.

Ecosystem

A biological community of interacting organisms and their physical environment.

Carolina Parakeet

A species of parrot that was native to the eastern, midwest, and plains states of the United States, now extinct due to habitat destruction and hunting.

Alien Species

Organisms introduced to a non-native environment where they can potentially cause harm to the ecosystem, economy, or human health.