When bridges are built, special joints must be used because the material of the bridge shrinks, and without these joints, the material would break. which of the following properties is described here? a. thermal decay b. thermal expansion c. thermal stasis d. thermal contraction

Option D.

Explanation:

The correct answer is Option D.

The shrinkage of the bridge material is because of thermal contraction.

Thermal contraction and thermal expansion are the phenomena of the bridge material which takes place due to the change in temperature of the atmosphere.

When the temperature of the surrounding increases expansion of the bridge material takes place and when temperature decreases the contraction of the material takes place.

This phenomenon sometimes damages the structure because due to continuous expansion and contraction of materials strength of the bridge decreases.

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