Energy and Its Sources Test

Result

Energy and Its Sources Test - 1

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Soil is the most important natural resource. In addition to water and air, which of the following is/are present in the soil?

A
Minerals, organic matter and rock

B
Organic matter

C
Minerals and plants

D
Plants

E
Minerals and organic matter

Solution

Soil contains water, air, rock, minerals and organic matter.
A profile (vertical section) of the soil shows all the layers in detail.
Question 2
1 / -0

__________, an important component, is present in the top layer of the soil that determines the soil fertility.

A
Water

B
Rock

C
Humus

D
Air

E
Minerals

Solution

Humus, formed by decomposition of the organic matter by the microbes, is present in a good amount in the top soil, which makes the soil fertile and provides nutrients for the growing plants.
Question 3
1 / -0

The vertical section shows different layers of soil. These layers are the horizons. Where is the horizon E found?

A
Above A horizon

B
Below B horizon

C
Below bedrock layer

D
Below C horizon

E
Below A horizon

Solution

The E horizon is above the B horizon, and beneath A horizon. It is the mineral horizon. It is often found in older soils and forest soils.
Question 4
1 / -0

The breaking down of rocks into mineral matter is referred to as

A
erosion

B
pollution

C
weathering

D
percolation

E
sedimentation

Solution

The breaking down of rocks by the action of wind, water and climate is called weathering.
Question 5
1 / -0

Good fertile soil has pH ranging between _________.

A
5.5 - 6.5

B
1.5 - 3

C
7 - 8

D
9.5 - 10.5

E
6.5 - 7.5

Solution

Good fertile soil is neither too acidic nor basic. It is slightly acidic in nature.
Question 6
1 / -0

__________ soil retains very little water.

A
Clay

B
Silt

C
Humid

D
Sand

E
Loamy

Solution

Sand soil particles are large in size. Hence, water retention capacity is very less. Thus, it provides good aeration.
Question 7
1 / -0

Ramesh is planning to develop a garden. Which of the following soil layers should he spread before plantation?

A
Sandy

B
Loamy

C
Clay

D
Peaty

E
Silt

Solution

Loamy soil is composed of sand, silt and clay soil to some extent. It is the perfect soil for gardening. It retains water very easily, and has a good amount of drainage.
Question 8
1 / -0

The soil having the highest water retention capacity is __________ soil.

A
silt

B
sandy

C
clayey

D
loamy

E
peaty

Solution

Clayey soil has the highest water holding capacity. This is because its particles are tightly packed and do not allow water to percolate through.
Question 9
1 / -0

What is a soil horizon?

A
A technique used to map soil

B
A vertical section showing all the layers of soil

C
A layer of the soil

D
The topmost surface of soil

E
Total area of earth covered by soil

Solution

Soil profiles shows different layers of soil, and each layer is known as soil horizon.
Question 10
1 / -0

A man was digging the soil and suddenly his spade got stuck and touched something very hard. He could not dig further. Which soil layer did his spade touch?

A
Horizon C

B
Bedrock

C
Horizon B

D
Horizon A

E
Horizon O

Solution

This is a hard and rocky layer known as bedrock. It is below the third layer.
Question 11
1 / -0

For good growth of lentils and pulses, ___________ is required.

A
clayey soil

B
sandy soil

C
loamy soil

D
mixture of sand and clay

E
mixture of peat and clay

Solution

Loamy soil consists of sand, clay and silt. It also contains enough humus. It has a good water-holding capacity. It is ideal for growing crops such as wheat, sugarcane, cotton, jute, pulses, lentils and oilseeds.
Question 12
1 / -0

Potters use _________ soil to make pots.

A
loamy

B
chalky

C
clayey

D
sandy

E
peaty

Solution

It is because the particles of the soil are very tightly packed leaving little space for air.
Question 13
1 / -0

In a sample of soil, the proportion of sand, silt and clay tells us about _________.

A
its fertility level

B
its nutrient potential

C
its colour

D
its texture

E
its structure

Solution

The relative proportion of different sizes of particles present in soil determines its texture.
Question 14
1 / -0

Loamy soil is a mixture of

A
sand and silt

B
sand, silt and clay

C
clay and silt

D
silt, loam and clay

E
clay and loam

Solution

The best top soil for growing plants is loam. It is a mixture of sand, clay and silt.
Question 15
1 / -0

Cotton is grown in ___________ soil.

A
loam

B
sand

C
sandy loam

D
clay

E
clay and loam

Solution

The soil, which can drain water easily and hold air is best for cotton.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Energy and Its Sources Test - 1

Result

Energy and Its Sources Test - 1

Score

-

Rank

-

SHARING IS CARING

Question 1

Minerals, organic matter and rock

Organic matter

Minerals and plants

Plants

Minerals and organic matter

Solution

Question 2

Water

Rock

Humus

Air

Minerals

Solution

Question 3

Above A horizon

Below B horizon

Below bedrock layer

Below C horizon

Below A horizon

Solution

Question 4

erosion

pollution

weathering

percolation

sedimentation

Solution

Question 5

5.5 - 6.5

1.5 - 3

7 - 8

9.5 - 10.5

6.5 - 7.5

Solution

Question 6

Clay

Silt

Humid

Sand

Loamy

Solution

Question 7

Sandy

Loamy

Clay

Peaty

Silt

Solution

Question 8

silt

sandy

clayey

loamy

peaty

Solution

Question 9

A technique used to map soil

A vertical section showing all the layers of soil

A layer of the soil

The topmost surface of soil

Total area of earth covered by soil

Solution

Question 10

Horizon C

Bedrock

Horizon B

Horizon A

Horizon O

Solution

Question 11

clayey soil