GEOLOGY

Detailed explanation-1: -The steeper the slope, the less infiltration and more runoff. The greater the soil is saturated with water, the less infiltration and the more runoff. The more permeably the ground, the more water that can infiltrate and the less runoff. The amount of pore spaces between sediments.

Detailed explanation-2: -Clay is the smallest material there thus it would allow the least a, out of rainwater to infiltrate the surface.

Detailed explanation-3: -Which soil type has the slowest permeability rate and is most likely to cause flooding? (1) clay (2) silt (3) sand (4) pebbles. The correct answer is (1) clay. Clay particles are tightly-packed together. This condition does not allow water to pass through easily; hence, it has the slowest permeability rate.

Detailed explanation-4: -Gravel and sand are both porous and permeable, making them good aquifer materials. Gravel has the highest permeability.

Detailed explanation-5: -When rainfall is greater than soil infiltration rate, surface runoff occurs. Factors affecting runoff include rainfall intensity, slope, soil water storage capacity, and infiltration rate [12].