Question

______ soil has a high clay content and is very durable and strong.

• fissured
• cohesive
• granular
• all of the above

Explanation:

Cohesive soil has high clay content. Clay particles have strong inter - particle forces (cohesion), which make the soil durable and strong. Fissured soil refers to soil with cracks and may not necessarily have high clay content for the described strength in a general sense. Granular soil (like sand) has low cohesion as the particles are mainly held by friction rather than the strong cohesive forces of clay. Since only cohesive soil meets the description of high clay content and being durable/strong, "All of the above" is incorrect.

Answer:

Cohesive