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What types of grains are desirable in sand for construction purposes?

39. What types of grains are desirable in sand for construction purposes?

1. Round and smooth
2. Spherical and porous
3. Flat and elongated
4. Irregular and angular

Answer

The correct answer is: D) Irregular and angular

Explanation

Sand grains with sharp, angular, and durable characteristics provide better interlocking and stability in construction applications.