Tag: biology

Questions Related to biology

The process of loosening and turning of soil is called as

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

  1. Irrigation and manuring

  2. Digging and winnowing

  3. Tilling or ploughing

  4. Harvesting and storage

Show answer
Correct Option: C
Explanation:

The process of loosening and turning of soil is called as tilling or ploughing. This is done by using a plough. It improves the soil quality by increasing aeration. It control the weeds. Therefore, option C is correct. 

Short Answer Questions :
Briefly mention the uses of the following implements :

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

  1. Plough

  2. Plank

  3. Persian wheel

  4. Thresher

  5. Sprikler

Show answer
Correct Option: A

In our country, for the manufacturing of agricultural tools, wood is the most commonly used material because

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

  1. Widely available.

  2. Cost effective.

  3. A simpler approach to prepare wooden tools than metal tools.

  4. All of the above.

Show answer
Correct Option: D
Explanation:
Wood is easily available and cost-effective for farmers as it can be obtained in their villages itself from broken or cut down trees. It is also easier for the farmers to make tools out of wood than metals it does not require a special furnace, moulds or training to make wooden tools.
The correct answer is 'all of the above'.

Which of the following is not a secondary tillage implement? 

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

  1. Cultivators

  2. Harrow

  3. Rollers

  4. Meston plough

Show answer
Correct Option: D
Explanation:

Secondary tillage is used to improve the seedbed by increased soil pulverization, to conserve moisture through the destruction of weeds, and to cut up crop residues. It is accomplished by use of various types of harrows, rollers, or pulverizers, and tools for mulching and fallowing. 

Plough is a tool used for the initial cultivation of the soil for the preparation of the sowing. It is not a secondary tillage implement.

Patela is used for

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

  1. Sowing

  2. Leveling

  3. Earthing

  4. Weeding

Show answer
Correct Option: B
Explanation:

Patela is the long rectangular, heavy, plank which is made up of locally available wood, sometimes extra weight is added to the planks by placing stones on it during used in field. It is used to smoothening, levelling and shaping the field surface. Thus, the correct option is B.

Which one of the following work is not done by scrappers? 

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

  1. Levelling of soil

  2. Making irrigation channels

  3. Covering the sown-seeds by earth

  4. Making ridges

Show answer
Correct Option: C
Explanation:

Scrapper is a hand tool generally used to scrap metals from the surface. It is generally used for leveling of soil, making irrigation channels, making ridges, to turn the surface. 

So, the correct option is 'Covering the sown-seeds by the earth'.

Soil turning plough makes the furrow of which type (shape)? 

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

  1. 'V' shape

  2. 'L' shape

  3. 'O' shape 

  4. No definite shape

Show answer
Correct Option: B
Explanation:
The soil turning plough has a typical shape of the curved metallic structure that first goes straight and then horizontal making an L shaped furrow. It is attached at the back of a tractor and used to plough fields or for sowing seeds at fixed distances.
The correct answer is 'L shaped'.

The purpose of tillage is/are

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

  1. Soil clods breaking and suppressing in soil

  2. Eradication of weeds

  3. Leveling of soil

  4. All of the above

Show answer
Correct Option: D
Explanation:

Tillage is the agricultural preparation of soil by mechanical agitation of various types, such as digging, stirring, and overturning. The purpose of tillage is multi-fold. Tillage serves to

(i) Reduce soil compaction from roads and/or heavy construction equipment, 
(ii) Remove unwanted vegetation (weeds),
(iii) Prepare a seedbed,
(iv) Dilute surface contamination below an appropriate action level, 
(v) Incorporate fertilizer, and 
(v) Stabilize the soil by removing erosion features such as rills.

Which of the following 'hoe' is bullock drawn?

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

  1. Akola hoe

  2. Sharma hoe

  3. Wheel hoe

  4. Naini type hoe

Show answer
Correct Option: A
Explanation:
  • Akola hoe is drawn by bullocks or hands. It was used to remove the weeds from the field and also used for maintaining the moisture in the field. 

  • Thus, the correct option is A.

Which of the following tool is used for measuring the draft of agricultural implements? 

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

  1. Dynamometer

  2. Hydrometer

  3. Galvanometer

  4. Barometer

Show answer
Correct Option: A
Explanation:

(A) Dynamometer- It is an instrument/device used for measuring mechanical force or power transmitted by a rotating shaft. For example, it is used to calculate the power produced by a motor or an engine in agricultural fields

(B) Hydrometer- It is a device used for measuring the relative density of liquids. It is made up of a thin glass tube and consists a bulb which floats upright.
(C) Galvanometer- It is a device used for measuring or detecting the flow of electric current through an electric circuit.
(D) Barometer- It is a device used to measure atmospheric pressure. This device is mostly used by the weather forecasters to predict the changes in the weather.
So, the correct option is 'Dyanamometer'.