Tag: biology

Questions Related to biology

The ................. plough will not invert or turn the soil.

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

  1. Chisel plough

  2. Ridging plough

  3. Mole plough

  4. Scottish hand plough

Show answer
Correct Option: A
Explanation:

  • A chisel plough is a common tool which is used to get deep tillage (prepared land) with limited soil disruption. 
  • The main function of this plough is to loosen and aerate the soils while leaving crop residue at the top of the soil. 
  • This plough can be used to reduce the effects of compaction and to help break up the hardpan. 
  • Unlike many other ploughs, the chisel will not invert or turn the soil. This characteristic has made it a useful addition to no-till and low-till farming practices that attempt to maximise the erosion-prevention. 

Therefore, the correct answer is option A.

Different types of agricultural hoe are __________

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

  1. Ridging hoe and hoedads

  2. Draw hoe and scuffle hoe

  3. Dutch hoe and hoop hoe

  4. All of  the above

Show answer
Correct Option: B
Explanation:

Agriculture Hoe is a long handle with thin, flat blade tool, which is used to dig the surface of the ground, pick out the weeds etc. Draw hoes are used to remove weeds without moving the mound soil and Scuffle hoes are used to cut the root of weeds easily and cultivate the soil. Thus, the correct option is B.

Which of the following is a type of plough?

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

  1. Chisel plough

  2. Scottish hand plough

  3. Mole plough

  4. All of the above

Show answer
Correct Option: D
Explanation:

  • A plough or plow is a tool used in farming for initial cultivation of soil in preparation for sowing seed or planting to loosen or turn the soil. 
  • The various types of ploughs used in agriculture are chisel, ridging, Scottish hand plough, mole plough etc. 

Therefore, the correct answer is option D.

The disadvantage of hoe to humans as presented by some individuals is____________

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

  1. Hoe does not help in removal of weed.

  2. Hoe leads to spoilage of soil.

  3. Use of short handled hoes leads to back pain.

  4. All of the above.

Show answer
Correct Option: C
Explanation:

  • Hoe is a long-handled gardening tool with a thin metal blade, used mainly for weeding. The human damage caused by long-term use of short-handled hoes, 
  • which required the user to bend over from the waist to reach the ground, and caused permanent, crippling lower back pain to farmworkers. 

Therefore, the correct answer is option C.

The main function of cultivator is

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

  1. To turn the soil

  2. To make furrow in soil

  3. To pulverize the soil

  4. All of the above functions

Show answer
Correct Option: C
Explanation:
Cultivators are used to stir and pulverize the soil, either before planting (to aerate the soil and prepare a smooth, loose seedbed) or after the crop has begun growing to kill weeds—controlled disturbance of the topsoil close to the crop plants kills the surrounding weeds by uprooting them, burying their leaves to disrupt their photosynthesis or a combination of both. Cultivators are designed to disturb the soil in careful patterns, sparing the crop plants but disrupting the weeds.

Which of the following is one (single) handed soil turning plough?

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

  1. Punjab plough

  2. Praja plough

  3. Victory plough

  4. U. P. No.1 plough

Show answer
Correct Option: B
Explanation:
Plough is a large farming implement with one or more blades fixed in a frame, drawn over the soil to turn it over and cut furrows in preparation for the planting of seeds.
Soil turning plough is of two types:- 
  • Single-handed ploughs; Praja, Meston, WahWah, Care ploughs. 
  • Double handed ploughs; Punjab, Victory, UP no 1, UP no 2 ploughs. 
So the correct option is 'Praja plough'.

Harrow is drawn by

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

  1. Bullocks

  2. Tractor

  3. Diesel

  4. Both A and B

Show answer
Correct Option: D
Explanation:

A harrow is an implement for breaking up and smoothing out the surface of the soil. Harrows were originally drawn by draft animals, such as horses, mules, or oxen. In modern practice, they are almost always drawn by tractor-mounted implements. 

What is the percentage of carbon in wrought iron?

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

  1. 0.05-1%

  2. 1-2%

  3. 2-3%

  4. 3-4%

Show answer
Correct Option: A
Explanation:
Wrought iron is a tough malleable form of iron with a very low carbon content (0.05-1%). It is very soft, ductile, magnetic and has very high tensile strength. It can easily be converted into different shapes. 
So the correct option is '0.05-1%'.

Which of the following does not affect the draft of ploughs? 

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

  1. Width of furrow

  2. Depth of furrow

  3. Length of furrow

  4. Soil moisture

Show answer
Correct Option: C
Explanation:

Plough is a tool which is used by the farmers for cultivation of the soil, planting for the sowing of seeds and turning over the soil and cut furrows. The tool is pulled through the ground in order to prepare furrows on the land. Draft of the plow does not affect the length of furrows. 

So, the correct option is 'Length of furrow'.

The working efficiency per day of deshi plough is

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

  1. 0.3 ha

  2. 0.4 ha

  3. 0.6 ha

  4. 0.8 ha

Show answer
Correct Option: B
Explanation:

Plough is a tool which is used by the farmers for cultivation of the soil, planting for the sowing of seeds and turning over the soil and cut furrows. The tool is pulled by oxen or tractors through the ground in order to prepare furrows on the land. 

So the correct option is '0.4 ha'.