Of All Transportation Modes, ________ Are the Least Expensive

question 222

Multiple Choice

Of all transportation modes, ________ are the least expensive.

• A) trains
• B) pipelines
• C) water carriers
• D) planes
• E) trucks

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Definitions:

Oxygen

A chemical element vital to most life forms on Earth; it is a key component of the air and is crucial for cellular respiration.

Diffusion

Diffusion is the passive movement of molecules or particles from regions of higher concentration to regions of lower concentration until equilibrium is reached.

Hypertonic

A hypertonic solution has a higher concentration of solutes compared to the inside of a cell, causing water to move out of the cell and leading to cell shrinkage.

Hypotonic

Solution that causes cells to swell.