Moisture in Soil

Q. Explain percolation rate.

Q. How to find percolation rate of water

Q. What is the difference between absorption rate and percolation rate of water in soil

Q. What is the difference between percolation and absorption?

Q. Are percolation and absorption rate one and the same

Q. Name the constituents of soil. [2 MARKS]

Q. Which among the following options correctly represents the percolation rate for a sample of soil?

1. $\frac{\text{Amount of water (mL)}}{\text{Percolation time (mins)}}$
2. $\frac{\text{Percolation time (mins)}}{\text{Amount of water (mL)}}$
3. $\frac{\text{Amount of water (mL)}}{\text{Mass of soil (kg)}}$
4. $\frac{\text{Amount of soil(kg)}}{\text{Percolation time (mins)}}$

Q.

Percolation rate and moisture absorption percentage describe similar quantities. Say true or false.

1. True

2. False

Q.

“Soil is alive”. Justify the statement.

Q.

Edward made a list of the types of soil in a column on the basis of proportion of particles of various sizes. And in another column, he mentioned the characteristics of different types of soil. The columns are as follows:

But he was unable to decide the exact characteristic of each type of soil and match the two columns.

What according to you is the correct match for the above columns?

\begin{tabular}{|c|l|} \hline Column I & Column II \\ \hline (a) Sandy Soil & (i)Proportion of fine particles is relatively higher. \\ \hline (b) Clayey Soil & (ii) Proportion of fine particles and large particles is almost same. \\ \hline (c) Loamy Soil & (iii)Proportion of large particles is relatively higher. \\ \hline \end{tabular}

Q.

Answer the following

1) Manish conducted an experiment in the field related to the rate of percolation. He observed that it took 20 min for 400mL of water to percolate through the soil sample. Calculate the rate of percolation.

2) What is the importance of humus to the soil?

Q.

If sandy soil (of beaches) has the highest percolation rate then why do floods come in coastal areas??

Q. What is the difference between percolation and absorption?

Q.

Take a handful of soil from a nearby garden and mix it in a clear glass partially filled with water. Stir the mixture and leave it undisturbed. What do the different layers obtained after the mixture has settled down prove?

1. Tthe garden is necessarily polluted

2. Soil is made up of different types of components

3. Soil makes a muddy solution

4. Soil is made up of a number of different types of components and soil is a muddy solution

Q. The seeping of water underground through the tiny spaces in between the soil particles is called __________.

1. percolation
2. aeration
3. absorption
4. erosion

Q.

Larger soil particles can retain more water.

1. True

2. False

Q. The formula $\frac{\text{amount of water (ml)}}{\text{time(min.)}}$ is used to calculate ________.

1. humidity
2. climate
3. percolation rate
4. evaporation

Q.

Larger soil particles can retain more water.

1. True

2. False

Q. Holding capacity is highest in

1. Clay soil
2. Loam soil
3. Silt soil
4. Sandy soil

Q. What is the difference between percolation and absorption?

Q. What is the difference between percolation and absorption?

Q. Percolation of soil water to water table occurs through

1. Micropores less than 0.2 $\mu$m
2. Micropores between 0.2 to 20.0 $\mu$m
3. Macropores between 20-50 $\mu$m
4. Macropores bigger than 50 $\mu$m

Q. The seeping of water underground through the tiny spaces in between the soil particles is called __________.

1. absorption
2. aeration
3. percolation
4. erosion

Q.

Percolation rate and moisture absorption percentage describe similar quantities. Say true or false.

1. True

2. False

Q.

Clayey soil holds little air and is heavy.

1. Only statement 1 is correct.

2. Only statement 3 is wrong.

Q.

Percolation rate and moisture absorption percentage describe similar quantities. Say true or false.

1. True

2. False

Q. is the name of the scent produced when rain falls on dry earth.

1. Latex
2. Petrichor
3. Chlorophyll