Moisture and Absorption of Water by Soil

Q.

1mL of water weighs ___grams.

Q.

The water holding capacity is the lowest in________

1. loamy soil

2. clayey soil

3. mixture of sand and loam

4. sandy soil

Q. Which soil is well aerated, light and dry?

1. Sandy
2. Loamy
3. Calyey
4. Sandy-loam

Q. the density of a piece of clay is 1.8 in C.G.S system of units. The corresponding value in S.I unit system is

Q.

Sand has more water absorption capacity than gravel.

1. True

2. False

Q.

Which soil is appropriately used for growing cotton?

Q.

Explain the following terms:
a.Sandy soil
b.Clayey soil
c.Loamy soil [3 MARKS]

Q.

Priya took a soil in a boiling tube and corked it with cotton. Then she heated the boiling tube on a spirited lamp. After some time she observed tiny drops of water droplets inside the boiling tube. What should be Priya's inference?

1. Soil contains moisture.
2. Soil contains organic content.
3. Soil contains minerals.
4. Soil contains air.

Q. Which of these is an insect-product used for making paints, varnish and cosmetics?

1. Lac
2. Leather
3. Sap
4. Pearl

Q. Soil has particles of different sizes. Arrange the words given below in increasing order of their particle size.

Rock, Clay, Sand, Gravel, Silt

Q.

Appu’s father collected four different types of soil from different places. He took four different beakers with funnel and filter paper. Then he put 10g of each sample of soil on the filter paper placed on the top of each beaker. Then he poured 70 ml of water in each beaker passing the filter paper with soil. After some time he observed that the amount of water in beaker A is 25 ml, beaker B is 30 ml, beaker C is 65 ml and beaker D is 50 ml. Based on this observation of Appu's father, which soil you think he should pick for his farm?

1. Clayey

2. Sandy

3. Can’t say with the given information

4. Coco Peat

Q.

Seema took some gravel in a perforated coconut shell. When she poured water into a perforated coconut shell filled with gravel, water drops come out through the hole of the coconut shell quickly. What inference can be arrived at from this?

1. Gravels have high organic content.
2. Gravels have low water absorption capacity.
3. Gravels have high water absorption capacity.
4. Gravels are suitable for agriculture.

Q.

The density of water is approximately ___ .

1. 1 g/cc

2. 2 g/cc

3. 1 kg/l

4. 0.5 kg/l

Q.

1mL of water weighs ___grams.

Q. What type of soil is called 'soudu'?

1. Sandy soil
2. Loamy soil
3. Saline soil
4. Black soil

Q.

The important. characteristics of soil should be:

(1) it should hold more water

(2) it should hold less water

(3) it should have particles of uniform size

(4) it depends on what we want to use the soil for

Q.

Soil suitable for farming will have less water absorption capacity.

1. True

2. False

Q.

1mL of water weighs ___grams.

Q.

What is density

Q. Wetting of dried soil surface automatically during night without rain is

1. Night recovery
2. Dew wetting
3. Mist formation
4. Ground frost

Q. In a field capacity, the soil contains

1. Capillary and gravitational water
2. Capillary and runway water
3. Hygroscopic and capillary water
4. Hygroscopic, capillary and bound water

Q. Sandy soil holds water better than clayey soil.

1. False
2. True

Q.

Which type of soil has the highest water holding capacity?

1. Clayey Soil

2. Sandy Soil

3. Loamy Soil

4. Gravel

Q.

what is the density of water?

Q. Which of these is a saprophytic angiosperm?

1. Cuscuta
2. Neottia
3. Agaricus
4. Yeast

Q. Very short answer type.
Mention the most significant function/role of Azotobacter.

Q. Water drains faster through sandy soil than clayey soil.

1. False
2. True

Q.

The water content in soil is known as

1. Water vapour

2. Water droplets

3. Moisture

4. Humidity