Physical Properties of Soil

Q. Humus is a major factor in deciding the soil structure because, it causes the soil to become more porous and allows water and air to penetrate deep underground.

1. True
2. False

Q. Which among the following are the physical properties of a soil?

1. Colour texture
2. Structure
3. pH value
4. Porosity

Q.

__________ makes soil porous and allows water and air to penetrate deep underground.

Q.

How does humus decide the soil structure?

Q. rate is the speed of at which water flows through a section of soil.

1. Percolation
2. Biomagnification
3. Retention

Q. Sandy soil has the highest percolation rate among all types of soil.

1. False
2. True

Q.

Which is not a function of humus?

1. Humus kills the harmful bacteria present in soil

2. Humus greatly influences the soil structure of a region

3. Humus causes the soil to become more porous

4. It allows water and air to penetrate deep underground

Q. Humus is a major factor in deciding the soil structure.

1. True
2. False

Q. Which of the following are physcial properties of soil?

1. Colour
2. pH
3. Texture
4. Porosity
5. Shape
6. Salinity
7. Nutrients
8. Size

Q. The presence of _____ in the soil help in aeration and percolation of water through the soil.

1. chemical fertillizers
2. solid wastes
3. pesticides
4. microbial organisms

Q. Soil with low percolation rate is highly porous in nature.

1. False
2. True

Q. How is humus formed?

Q. $\text{P}ercolationrate=\frac{\text{t}heamountofwater\left(ml\right)}{\text{t}heamountoftimetaken}$

1. False
2. True

Q. Water is measured in ml in the calculation of percolation rate.

1. False
2. True