Types of Weathering and Soil

The opposite figure shows a type of weathering, which is weathering.

• chemical

• biological

• physical

• mechanical

What is the type of weathering that led to the transformation of the rock from figure (1) to figure (2) after the rainfall?

• Physical weathering.

• Chemical weathering.

• Biological weathering.

• Mechanical weathering.

The opposite figure shows a waterfall in one of the nature reserves that led to the erosion of some rocks, as a result of being exposed to processes.

• physical

• chemical

• biological

• mechanical

The opposite figure shows a tropical mountainous area that was exposed to processes that led to the formation of the shown debris. So, this was a result of all of the following, except.

• the great changes in temperature

• the animal movement on the rocks

• the interaction of acid rain with limestone

• the movement of wind and water currents

Which of the following components represents the largest proportion of the soil components?

• Organic matter.

• Gases.

Most of the minerals that form the soil are

• carbonates

• oxides

• silicates

• sulfates

From the opposite vertical section of the soil, which of the following horizons is the last?

• A

• B

• C

• D

Which of the following is not a characteristic of the soil minerals resulting from physical weathering?

• They are chemically different from the bedrock.

• They are different in size.

• the period of time at which soil is formed

• the effect of living organisms on the rock

• the degree of rock hardness

The decrease in the thicknesses of the soil horizons that are formed from the rock is influenced by increasing

Humus is abundant in horizon (A) of the soil due to the presence of all the following,