Although Irrigation Improves Crop Production in the Long Term It

question 1

Multiple Choice

Although irrigation improves crop production in the long term it can irreparably damage cropland when

• A) critical nutrients are leeched from the soil in irrigation water.
• B) irrigation water disperses pathogen, like Salmonella, onto the crop.
• C) salts accumulate after the irrigation water evaporates.
• D) irrigation water washes away the topsoil.

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Definitions:

Z Line (Disc)

A key component in skeletal muscle fibers that anchors the actin filaments and marks the boundary between sarcomeres.

Motor Unit

A single motor neuron and all the muscle fibers it innervates, functioning as a single operational unit in muscle contraction.

Neuron

A specialized cell transmitting nerve impulses; a nerve cell.

Muscle Fiber

A single muscle cell, known for its long, cylindrical shape and role in contracting to facilitate body movement.