Tag: biology

Questions Related to biology

Which of the following seed drills are used for sowing ?

biology modern agriculture modern equipments in agriculture soil quality methods of crop production

  1. Tiphan

  2. Pabhar

  3. Mogada

  4. All of the above

Show answer
Correct Option: D
Explanation:

(A) A tiphan is a type of seed drill used for sowing seeds. It is a three-bladed seed drill.

(B) Pabhar  is a type of seed drill which has four vertical blades which make four rows on the land.
(C) Mogada is a type of tool which has two blades.
So, the correct option is 'All of the above'.

Which of the following are human powered tilling methods to prepare soil?

biology modern agriculture modern equipments in agriculture soil quality methods of crop production

  1. Rolling

  2. Rototilling

  3. Hoeing

  4. Ploughing

Show answer
Correct Option: C
Explanation:

The process of digging the field with the help of a hoe is called hoeing. Hoe is a long-handled thin bladed tool which is usually used to break the surface of ground, remove weeds, scrape the land etc.

So, the correct option is 'Hoeing'.

What are the negative impacts of tilling on soil?

biology modern agriculture modern equipments in agriculture soil quality methods of crop production

  1. Loss of nutrients

  2. Organic matter reduced

  3. Eutrophication

  4. All of the above

Show answer
Correct Option: D
Explanation:

Tillage of crop affects the soil quantity. It disrupts the soil structure and leads to soil erosion and eutrophication. Tillage also reduces crop residue. It leads to the destruction of the crop.

So, the correct option is 'All of the above'.

Which of the following tillage provides rough surface to the soil?

biology modern agriculture modern equipments in agriculture soil quality methods of crop production

  1. Primary

  2. Secondary

  3. Tertiary

  4. None of the above

Show answer
Correct Option: A
Explanation:

The process which is takes place of after the last harvesting. Ploughs are used for primary tillage. It is done when the soil is wet enough for ploughing. It can be done immediately after harvest or before the wet season.

So, the correct option is 'Primary'.

Soil compaction problems are reduced by .......... tillage.

biology modern agriculture modern equipments in agriculture soil quality methods of crop production

  1. Conservation

  2. Zone

  3. Reduced

  4. Intensive

Show answer
Correct Option: B
Explanation:

Zone tillage is the disturbance and loosening of an area of soil between two counter-blades. It is a cross between high-performance crop production and soil health, benefiting the environment. It is done by using narrow profile-blades.

So, the correct option is 'Zone'.

Which of the following describes the advantage of ploughing ?

biology modern agriculture modern equipments in agriculture soil quality methods of crop production

  1. It allows the penetration of roots of plants.

  2. It helps in proper aeration and eradicates weeds.

  3. It promotes the growth of useful soil bacteria.

  4. All of the above.

Show answer
Correct Option: D
Explanation:

Ploughing is the method which helps in the loosening of the soil to aerate the soil. It allows space for the penetration of the roots of the crop plants. The aeration helps the plants to respire properly and there is the eradication of the weeds. This movement of the soil helps in the growth of the beneficial soil bacteria.

Thus, the correct answer is option D. 

Match the following:-

   List I    List I
I.  Winnowing  A.  Irrigation
 II.  Threshing  B.  Hoe
 III.  Drip system  C.  Separation of grain and chaff
 IV.  Weeds  D.  Separation of seeds and chaff
biology modern agriculture modern equipments in agriculture soil quality methods of crop production

  1. I - D, II - C, III - A, IV - B

  2.  I - D, II - C, III - B, IV - A

  3. I - C, II - D, III - B, IV - A

  4. I - C, II - D, III - A, IV - B

Show answer
Correct Option: A
Explanation:

  • Winnowing is an agricultural technique which is used to remove the chaff or husk from seed.
  • Threshing is the technique used to remove grain from the chaff.
  • Drip irrigation is a form of irrigation that allows water to drip slowly through a network of valves, pipes, tubing, and emitters directly to roots.
  • Weeds are removed by an instrument called hoe.

Plough was developed around

biology modern agriculture modern equipments in agriculture soil quality methods of crop production

  1. 3500 B.C.

  2. 2500 B.C.

  3. 1500 B.C.

  4. 500 B.C

Show answer
Correct Option: A

Iron plough came into use around

biology modern agriculture modern equipments in agriculture soil quality methods of crop production

  1. 1000 B.C

  2. 1500 B.C

  3. 500 B.C

  4. First century B.C

Show answer
Correct Option: C

Which of the following tools would a farmer use to remove weeds from the field?

biology modern agriculture modern equipments in agriculture soil quality methods of crop production

  1. Hoe

  2. Plough

  3. Axe

  4. Cultivator

Show answer
Correct Option: A
Explanation:

Weeds are unwanted, unattractive and troublesome plants. 
The plough is used to loosen and aerate the soil leaving crop residue at the top of the soil. Therefore, option B is incorrect. 
Axe is used to cut perennial, woody plants to harvest wood for various purposes. Therefore, option C is incorrect. 
Cultivators are used to break large clods of soil. Therefore, option D is incorrect. 
Hoe is used to slice weeds by skimming it just under the soil surface using a sweeping motion. Therefore, option A is correct.