Soils

The video explains the composition and types of soil, including clay, silt, sand, and humus. It discusses the properties of each type, such as clay's density and nutrient retention, silt's erosion potential, sand's drainage, and humus's nutrient content. The video highlights loam as the ideal soil for plant growth due to its balanced composition. It emphasizes the importance of soil composition in determining plant growth and survival.

What is a characteristic of clay soil when it is wet?

• It becomes sandy.

• It becomes sticky.

• It becomes dry.

• It becomes loose.

Which type of soil is known for making mud?

• Clay

• Sand

• Silt

• Loam

Why is sand not ideal for retaining nutrients?

• It absorbs too much water.

• It is too sticky when wet.

• It is too dense for nutrients to stay.

• It has large particles that allow water to drain quickly.

What is humus primarily composed of?

• Decomposed plants and animals

• Sand and silt

• Minerals and rocks

• Clay particles

What is the ideal soil type for plant growth due to its balanced composition?

• Sand

• Loam

• Clay

• Silt