Tag: evs

Questions Related to evs

The branch of agriculture which deals with feeding, shelter, health and breeding of domestic animals is called animal husbandry.

evs animals- nature's gift animal and habitat wonderful world of bholu food material and source

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

Animal husbandry is the science of rearing, caring, feeding, breeding, improvement, and utilization of sophisticated animals.

So, the correct option is 'True'

Cuniculture is related to

evs animals- nature's gift animal and habitat wonderful world of bholu food material and source

  1. Keeping of honey bees

  2. Rearing of rabbits

  3. Cultivation of fruits and vegetables

  4. Rearing of fish

Show answer
Correct Option: B
Explanation:

Cuniculture is the practice of breeding and raising domestic rabbits as livestock for their meat, *fur and wool.

Sealing wax is

evs animals- nature's gift animal and habitat wonderful world of bholu food material and source

  1. Vegetable wax

  2. Hard paraffin wax

  3. Shellac

  4. Lanolin

Show answer
Correct Option: C
Explanation:

Sealing wax is a wax material of a seal which, after melting, hardens quickly forming a bond that is difficult to separate without noticeable tampering. Typically these are a mixture of wax and resin; usually beeswax and shellac.

So, the correct answer is 'Shellac'.

Which of the following animal is used for the domestic purpose?

evs animals- nature's gift animal and habitat wonderful world of bholu food material and source

  1. Fish

  2. Parrot

  3. Duck

  4. Horse

Show answer
Correct Option: D
Explanation:

Horse is used for domestic purpose. It is used as means of transport. It is also used as draught animals  on fields. It is also used for racing and riding. The milk produced by the female horse is known as mare. It is rich in whey protein, polyunsaturated fatty acids and vitamin C.

Fish is aquatic animals and it is not used for domestic purpose. Parrot and duck are the birds which is not used for domestic purpose.
So, the correct answer is option D.

What is the advantage of crop rotation?

evs fertility of the soil crop yield improvement food supply crop improvement methods and organisations

  1. Getting different kinds of crops

  2. Increasing the quality of minerals

  3. Increasing the fertility of soil

  4. Increasing the quality of proteins

Show answer
Correct Option: C
Explanation:
  • Crop rotation is a traditional practice of growing different crops in the same area, so as to increase the fertility of the soil. 
  • This process helps to build up the lost nutrients of the soil and when the rotation is done with growing cereals, it replenishes the nitrogen levels of the soil because crop rotation is mostly done by using legumes and paddy crops.
So, the correct answer is option C.

The seeds respirate at the time of germination.White showing this experiment a test tube with KOH is kept in the conical flask to _____________. 

evs life within the seed developmental journey of seed introduction to plant organs and germination seed to plants

  1. Supply oxygen necessary for respiration.

  2. create space in the conical flask by absorbing $CO _3$.

  3. absorb water from the seeds and dry them

  4. make the air in the conical flask acidic

Show answer
Correct Option: A

Which of the following members of spermatophyte is able to produce seed but not cones?

evs life within the seed developmental journey of seed introduction to plant organs and germination seed to plants

  1. Eucalyptus and Wolfia

  2. Pinus & Cycas

  3. Pteris & Dryopteris

  4. Eucalyptus & Pinus

Show answer
Correct Option: A

Water from rivers is the only source for irrigation in the fields

evs receding water table patterns of cropping rotation of crops common irrigation systems

  1. True

  2. False

Show answer
Correct Option: B
Explanation:
  • Irrigation is the application of controlled amounts of water to plants at needed intervals. Irrigation helps to grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during periods of less than average rainfall.
  • Sources of irrigation water include groundwater, through springs or wells, surface water, through rivers, lakes, or reservoirs, or even other sources, such as treated wastewater or desalinated water.
  • Hence Water from rivers is the only source for irrigation in the fields is a false statement.
  • So, the correct answer is 'False'.

Of the following all are the traditional method of irrigation except

evs receding water table patterns of cropping rotation of crops common irrigation systems

  1. Chain pump

  2. Pulley system

  3. Persian wheel

  4. Basin irrigation

Show answer
Correct Option: D
Explanation:
Basin irrigation is a type of surface irrigation especially in regions with layouts of small fields having level surfaces and surrounded by low bunds which prevent the water from flowing to the adjacent fields. This method is generally suitable for crops that are unaffected by standing water for long periods. for e.g., rice cultivation areas.
Chain pump, pulley system, and persian wheel belongs to the traditional system of irrigation.
So, the correct answer is option D.

The device used by the doctor to amplify the heartbeat is

evs transportation in animal and plants blood transfusion transfusion of blood blood and organ donation

  1. Periscope

  2. Thermometer

  3. Stethoscope

  4. Microphone

Show answer
Correct Option: C
Explanation:
The stethoscope is an acoustic (hearing) medical device used for auscultation (listening of internal sounds of the body. The doctor will place a small metal circle called a bell, against the chest, at the spot where a person can feel the heartbeat. Hence the device used by the doctor to amplify the heartbeat is stethoscope.
So, the correct answer is 'Stethoscope'.