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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

24701.

What type of soil is required for growing paddy?

Answer»

Paddy is grown in clayey soil, which retains water for a longer period.

24702.

Fill in the mlanks1. The scientific study of soil is called …………….. . 2. The upper most layer of earth’s crust is …………….. . 3. The pleasant smell after the rain is known as …………….. . 4. The substance responsible for petrichor scent is …………….. . 5. Geosmin is produced by …………….. . 6. The breakdown of parent rock into small particles by the action of wind, water, heat and climate is known as …………….. . 7. The process of formation of soil from weathering is known as …………….. . 8. Natural weathering takes a time period of …………….. . 9. Dead and decayed organic matter that mixes with soil is called …………….. . 10. The factors that contribute to soil composition are called …………….. . 11. The science dealing with the influence of soil on organisms, especially on plants is called …………….. . 12. In soil profile, bed rock is present in …………….. horizon. 13. In soil profile, surface litter is present in …………….. horizon 14. …………….. horizon consists of broken rocks with very little organic matter. 15. …………….. soil is less aerated and water held longer. 16. …………….. soil has good aeration, water held but drains slowly. 17. …………….. soil is well aerated and drains quickly. 18. The ratio of the mass of water held in the soil is called …………….. . 19. Paddy is grown in …………….. soil. 20. Cotton is grown in …………….. soil.

Answer»

1. Pedology 

2. soil 

3. petrichor scent 

4. geosmin 

5. the spores of Actinomycetes 

6. weathering 

7. Pedogenesis 

8. 500 -1000 years 

9. Humus 

10. edaphic factors 

11. Edaphology 

12. R 

13. O 

14. C 

15. Clayey 

16. Loamy 

17. Sandy 

18. moisture content 

19. clayey 

20. black

24703.

Why is soil an important resource?

Answer»

It is the important natural resources necessary for life on the earth. Human beings, plants and micro organisms depend on soil for their basic needs.

24704.

Did you observe that after heavy rain, the top soil get washed off?

Answer»

Yes. I observed it during rainy season.

24705.

How can the soil erosion be prevented?

Answer»

1. Our farmers grow big trees around the fields to stop winds. 

2. They don’t keep the lands vacant. 

3. Farmers generally use vacant lands to grow grass and other plants. 

4. These grass plant roots hold the soil particles and prevent soil erosion during heavy rains.

24706.

How can we prevent it?

Answer»

1. By afforestation. Controlling the deforestation activities.

2. Constructing check dams and bunds 

3. Preventing over grazing of land by animals. 

4. By planting trees as shelter belt to stop winds. 

5. By planned agricultural practices we can prevent soil erosion successfully.

24707.

Why do wells dry up?

Answer»

Decrease in ground water table leads to dry up of wells.

24708.

The process of entry of water into the ground is A) Ground water B) Percolation C) Infiltration D) Water table

Answer»

The correct answer is C) Infiltration.

24709.

The wells, tube wells and hand pumps get water present in the A) Infiltrations B) Water tables C) Aquifers D) Soil profiles

Answer»

The correct answer is C) Aquifers.

24710.

Can we grow a crop in all types of soil?

Answer»

No, it is not possible.

24711.

Why is it essential to manage the water?

Answer»

To resolve the prevailing water scarcity in the society, proper water management of water resources is very essential.

24712.

The right sequence of horizons of the soil from top to bottom is A) A, B, C, O, R B) O, A, B, C, R C) C, A, B, O, R D) R, C, B, A, O

Answer»

The correct answer is B) O, A, B, C, R.

24713.

A group of organisms that can interbreed under natural conditions is called (A) morphospecies (B) biospecies (C) polyspecies (D) indica

Answer»

Correct option: (B) biospecies

24714.

The basic unit upon which the system of classification is constructed is the (A) species (B) order (C) family (D) class

Answer»

Correct option: (A) species

The term ‘species’ occupies a unique position in taxonomic hierarchy. It is not only a basic unit in taxonomy, but also in evolution.

24715.

What will happen if the ground water table go down?

Answer»

All the wells and bore wells will dry up.

24716.

Why can’t the freezing plants for fruits and vegetables be installed at farmers’ level?

Answer»

A huge investment nearly Rs. 30 lakh is required to set up this unit. Therefore, it cannot be established at farmer’s level.

24717.

What will happen if the top soil is washed off?

Answer»

The soil will loose its quality and fertility.

24718.

What would happen if same crop is cultivated continuously in the same field?

Answer»

1. It decreases the soil fertility. 

2. Yield decreases in the next crop.

24719.

Why is woman in the picture using hand pump?

Answer»

For getting drinking water.

24720.

What is soil erosion?

Answer»

Loss of the upper fertile layer of soil is known as soil erosion. 

24721.

In biological terminology, a group of similar organisms which are capable of inter-breeding and forming fertile offspring is called (A) species (B) tribe (C) genus (D) family

Answer»

Correct option: (A) species 

Tribe is a race or division of people. Genus is a group of closely related species, which resemble one another in certain characters. Family represents a group of closely related genera.

24722.

Discuss the various operations involved in turmeric processing. Or How turmeric powder is prepared from raw tarmeric?

Answer»

For processing, all the turmeric, rhizomes are washed properly to remove soil sticking to it etc. For this purpose P.A.U. has developed a machine which can wash and polish turmeric. This machine can wash and polish simultaneously nearly 2.5 – 3.0 quintal turmeric per hour. After this step (i.e. washing etc.) turmeric is boiled so that fingers become soft and their colour becomes uniform.

If boiling is done in open container it takes an hour but if boiled in pressure cooker it takes 20 minutes. After boiling, turmeric fingers are dried in sun so that moisture content is less than 10%. It takes nearly 15 days if strong sunlight is available. Now top layer of turmeric is removed by polishing. Then it is grounded in the grinder (hammer mill). This way 100 kg fresh turmeric gives 15-20 kg. powdered turmeric.

24723.

Describe the machine developed by PAU, Ludhiana for processing of turmeric.

Answer»

Punjab Agricultural University has developed a machine which is used for washing and polishing of turmeric. This machine can wash 2.5 -3.0 quintal turmeric in an hour and then can polish it also.

24724.

What type of machinery can be installed in a small agro processing complex and which crops will be processed?

Answer»

A small agro processing complex can have following machines.

  • mini rice mill
  • oil expeller
  • small flour mill
  • grinder
  • pulse cleaner and grader
  • cotton ginning machine
  • small feed mill
  • mini dal mill

These machines are used for processing pulses, cereals, oil seeds, spices, paddy, cotton etc.

24725.

Discuss the advantages of setting up of agro processing complexes in Punjab.

Answer»

Generally, there is damage of 10% grains after harvesting and in case of fruits and vegetables this damage and loss is upto 30 – 40%. If processing units are established at village level then such losses can be minimized. Farmers can get more income. Unemployed youth can get work and we can get fresh and high quality eatables. Due to availability of employment and earning, the migration towards cities is also reduced.

24726.

Discuss any three machines used in agro processing complexes.

Answer»

Agro processing complexes can have machines like mini rice mill, oil expeller, cotton gining machine etc. which are used to process paddy, oil seeds, cotton etc.

24727.

What should be the policy for capital intensive agro processing industry?

Answer»

There are some agro processing plants which have very high initial cost. For example, the cost to establish dehydration and freezing plant for fruits and vegetables is nearly Rs. 30 lakh. Such a plant cannot be set up. at an individual level. Such a unit should be established at cooperative level by group of farmers. This way one plant can be used by various farmers and they can process their produce and can market them.

24728.

What are the technical operations related with jaggery manufacturing?

Answer»

Sugarcane is crushed using cane crusher. Juice so obtained is heated and concentrated to get jaggery.

24729.

Animals plants and microbes activities are more in this horizon A) A-horizon B) R-horizon C) C-horizon D) 0-horizon

Answer»

The correct answer is A) A-horizon.

24730.

What would happen if there is no soil on the Earth?

Answer»

Life on the earth would become impossible.

24731.

From which crop is raw material for textile industry obtained?(a) wheat(b) cotton(c) sugarcane(d) mustard

Answer»

Correct option is (b) cotton

24732.

Which machine is used for oil extraction from oil seeds?(a) Oil expeller(b) Flour mill(c) Seed grader(d) Grinder

Answer»

Correct option is (a) Oil expeller

24733.

Living organisms are (A) Self replicating (B) Capable of responding to external stimuli (C) Self regulating interactive systems (D) All of above

Answer»

Correct option: (D) All of above

24734.

How agro based industries can be helpful in enhancing income of the fanners?

Answer»

Farmers can get more income by processing and selling of the agricultural produce at small scale. Farmer can also increase his income by adopting the occupations like – poultry farming, dairy farming etc.

24735.

What type of agro based industry can be set at cooperative level?

Answer»

A huge investment is (nearly 30 lakhs Rupees) is needed to set up dehydration and freezing plant for the processing of fruits and vegetables. Such units can be established at cooperative level and initial investment at individual level is reduced to large extent.

24736.

Name any two rural agro-based industries.

Answer»

Turmeric processing plant, Mentha procesing unit, Juggery manufacturing.

24737.

Name monthly magazine related to agriculture?

Answer»

Correct answer is ‘Changi Kheti’.

24738.

What is the use of flour mill (atta chakki)?

Answer»

Used to grind wheat, maize seeds to get flour.

24739.

What is the cost of establishment of agro-processing unit and how much is the income from this unit?

Answer»

Cost for setting up these machines is from Rs. 5 to 20 lakh and one can get an income of Rs. 10 thousand to 50 thousand per month.

24740.

It is also called top soil A) A-horizon B) B-horizon C) C-horizon D) R-horizon

Answer»

The correct answer is A) A-horizon.

24741.

Choose the correct answer. 1. In addition to the soil particles, the soil also has a) air and waterb) water and plants c) minerals, organic matter, air and water d) water, air and plants2. The water holding capacity is the highest in a) sandy soil b) clayey soil c) loamy soil d) mixture of sand and loam3. Which among the following is not responsible for water shortage? a) Industrial growth b) Population growth c) Heavy rainfall d) Mismanagement of water resources

Answer»

1. c) minerals, organic matter, air and water

2. b) clayey soil

3. c) Heavy rainfall

24742.

You have been asked to maintain a garden. How will you minimize the use of water?

Answer»

To minimize the wastage of water we will use drip irrigation which throws the water at the base of plants. We will check the leakages in the water pipes and arrange small pits for rainwater harvesting. The collected rainwater will be used later.

24743.

Where do animals and humans live?

Answer»

They live on the Earth.

24744.

Why was the need for establishing an all-India organisation, representing Indian opinion, an urgent necessity?

Answer»

The need for an all India Organisation representing Indian opinion had been felt for a long time, but the immediate reasons which saw its birth, were the repressive policies of the British in the 1870s and the 1880s. In 1883 the controversial Ilbert Bill incident took place. According to it a British or a European in India could be tried by an Indian Judge. The Bill was withdrawn because of the opposition by the British.These events made the need for establishing an all-India organisation, representing Indian opinion an urgent necessity.

24745.

Who first started the work of establishing political organisation in Bikaner?(a) Raghuvar Dayal Goyal(b) Manikyalal Verma(c) Magharam Vaidya(d) Bhurelal Baya

Answer»

(c) Magharam Vaidya

24746.

Is there any financial help available by government or other organisation for establishing agriculture based enterprises?

Answer»

Government as well as many other organisations provide financial help and training to establish agriculture based occupations.

24747.

Define percolation .

Answer»

Percolation : Water passing down through the soil particles is called percolation.

24748.

Poorvika wants to maintain a garden,- what suggestions can you give her to minimize the use of water and also to improve the soil quality?

Answer»

1. By using sprinklers and drip irrigation methods we can reduce the wastage of water in the garden. 

2. Construction of soaking pits in the garden enhances the percolation of raia water into the soil. It improves the ground water table. 

3. Rotting vegetation and animal remains make up the humus rich in fertility. 

4. They contain nutrients, natural manure, which give good support to the growth of ‘ plants. 

5. I also suggest Poorvika to grow big trees around the garden to stop winds. 

6. It is better to grow grass and other plants in the vacant portions of the garden. These grass plant roots hold the solid particles and prevent soil erosion during heavy rains.

24749.

The multimedia presentation is converted into a web page by (a) computer programmer (b) web master (c) graphic artist (d) multimedia architect

Answer»

(b) web master

24750.

Fill in the blanks. 1. To survive in the world we all need …… to earn money. 2. In well developed countries the proportion of work force engaged in ……. will be very smart. 3. …….. sector has some formal processes and procedures.4. …….. are not registered with the government.5. Most of the …….. in Tamil Nadu has been contributed by the unorganised and informal sectors.

Answer»

1. employment

2. Agriculture 

3. Organized 

4. Unorganised Sectors 

5. employment growth