Which of the following are the components of loamy soils? I. Red soil II. Clay soil III. Alluvial soil IV. Silt soil V. Sandy soil

Consider the following statements and state what is not true of the Alluvial Soils? (a) Alluvial soils are the most widely spread soils. (b) Alluvial soils as a whole are very fertile. (c) On the basis of their age they are classified into two - old: Bangar and new: khadar. (d) Khadar soils are more fertile than Bangar (e) Alluvial soils contain an adequate proportion of potash, phosphoric acid and lime (f) Alluvial soils are ideal for sugarcane, paddy, wheat and pulses.

A

(c)

B

(d)

C

(e)

D

None

Which of the following are the components of loamy soils?
I. Red soil
II. Clay soil
III. Alluvial soil
IV. Silt soil
V. Sandy soil

A

I and II

B

I, III and IV

C

II and V

D

II, III and V

Consider the following statements. A. Loamy soils are the most aerated soil. B. Clayey soil has the most water hold capacity. C. Most amount of fine particles can be observed in sandy soil. D. Loamy soil consists of sand, clay, and silt. Which among the following statements are correct?

A

A, B, C

B

B, D

C

A, D, B

D

A, D

Consider the following statements about alluvial soils. 1. One of the most important and fertile soils of India they support the growth of a wide variety of crops such as rice, wheat, sugarcane, cotton, jute, potato and vegetables. 2. Alluvium are fine particles of rock materials carried in suspension and later deposited by the river in its bed and bank. 3. Alluvial soils are not formed by the deposition of silt by the rivers. Which of the statements given above is/are correct?

A

3 only

B

1 and 2 only

C

1 only

D

1, 2 and 3

Put in descending order of area with the following soils in India: I. Red soils II. Black soils III. Laterite soils IV. Alluvial soils

A

I, IV, II, III

B

IV, II, I, III

C

IV, I, III, II

D

I, III, IV, II

Put in descending order of area with the following soils in India:
I. Red soils
II. Black soils
III. Laterite soils
IV. Alluvial soils

A

I, IV, II, III

B

IV, II, I, III

C

IV, I, III, II

D

I, III, IV, II

Put in descending order of soils in terms of percentage area in India: I. Red soils II. Black soils III. Laterite soils IV. Alluvial soils

A

I, IV, II, III

B

IV, II, I, III

C

IV, I, II, III

D

I, III, IV, II

Consider the following statements and choose the correct answer:
1. Soil gets heat energy from different sources such as solar radiation, decomposing organic matter and heat formed in the interior of earth
2. The temperature of soil is not affected by its colour and altitude of the land
3. Black soils absorb more heat than white soils
4. Sandy soils absorb more heat and radiate it out quickly at night than clay or loam soils

A

Only 1, 2 and 3 are true

B

Only 2, 3 and 4 are true

C

Only 1, 3 and 4 are true

D

Only 1, 2 and 4 are true

Which of these statements is correct with reference to soil? i. Topsoil has the maximum amount of humus ii. Sandy soils percolate water faster iii. The loamy soil consists of sand and clay

A

Both i and ii

B

Only ii

C

Both i and iii

D

Only i

A teacher is trying to introduce her class VII students to different kinds of soil. She begins by introducing the names of three kinds of soil i.e. sandy soils, clayey soil and loamy soil. She explains the properties of each soil in term of its particulate nature. She then demonstrates one sample of each kind of soil and shows the students the difference in percolation rate of an examples. How would you evaluate this approach from an inquiry oriented perspective?

A

It is an effective approach that encourage inquiry.

B

Demonstrating more soil samples would make the approach inquiry-oriented.

C

It is not an effective approach for encouraging inquiry.

D

Asking questions in the end would make the approach inquiry-oriented.

Which of the following are the components of loamy soils? I. Red soil II. Clay soil III. Alluvial soil IV. Silt soil V. Sandy soil

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