Tag: evs

Questions Related to evs

Crop rotation is employed for

evs improvement in food resources crop yield improvement food supply crop improvement methods and organisations

  1. Increasing nitrogen content of soil

  2. Checking soil erosion

  3. Community development

  4. Enhancing soil fertility

Show answer
Correct Option: D
Explanation:

Crop rotation is the practice of growing a series of dissimilar or different types of crops in the same area in during different seasons. It is done so that the soil is not depleted of a particular type of  nutrients. It helps in reducing soil erosion and increases soil fertility and crop yield. 

So, the correct answer is 'Enhancing soil fertility'

Which one of the following is an important sugar yielding crop that can be profitable cultivated in soils having a high amount of sodium?

evs improvement in food resources crop yield improvement food supply crop improvement methods and organisations

  1. Sugar-beet

  2. Palymyra palm

  3. Sugarcane

  4. Sweet potato

Show answer
Correct Option: A

Wheat crop field infected with hill burnt often stinks. The foul odour is due to the presence of _______________.

evs improvement in food resources crop yield improvement food supply crop improvement methods and organisations

  1. Methane in infected part

  2. Hydrogen Sulphide in spore mass

  3. Trim ethylamine in spore mass

  4. Alcohol in feted plants

Show answer
Correct Option: A

Which of the following is not a characteristic of mixed cropping?

evs improvement in food resources crop yield improvement food supply crop improvement methods and organisations

  1. Minimize risk of crop failure

  2. Set pattern of rows

  3. Harvesting and threshing crops separately is not possible

  4. Individual marketing and consumption of crop is not possible

Show answer
Correct Option: D
Explanation:

Mixed cropping is a type of cultivation in which two types of crops are grown at a time and in the same piece of land. It is a form of polyculture. The characteristic of mixed cropping is balancing the nutrient level on soil, suppression of weed and insect pests, minimize the risk of crop failure etc.

So, the correct option is 'Individual marketing and consumption of crop is not possible'.

The method of growing different crops alternatively on same piece of land is called _______________.

evs improvement in food resources crop yield improvement food supply crop improvement methods and organisations

  1. Mixed cropping

  2. Multiple cropping

  3. Rotation cropping

  4. Inter cropping

Show answer
Correct Option: C
Explanation:

The method of growing different crops alternatively on same piece of land is called rotation cropping. This helps in maintaining or improving the fertility of soil.

Improper use of land converts fertile land into unusable land.

evs improvement in food resources crop yield improvement food supply crop improvement methods and organisations

  1. True

  2. False

  3. Nither

  4. Either

Show answer
Correct Option: A

Dietary fibers are composed of

evs food components simple test for nutrients test for nutrients energy from different food components

  1. Cellulose

  2. Amylase

  3. Proteins

  4. Unsaturated fats

Show answer
Correct Option: A
Explanation:

  • Fiber is the indigestible part of plant foods that travels through the digestive system and absorbs the water along the way.
  • It is also known as roughage.
  • Dietary fiber contains non-starch polysaccharides such as cellulose, dextrins, inulin, lignin, beta-glucans, and waxes. 
So, the correct answer is 'Cellulose'.

The major components of food which is required by the body for wear and tear is _________

evs food components simple test for nutrients test for nutrients energy from different food components

  1. Vitamins

  2. Minerals

  3. Salt

  4. Protein

Show answer
Correct Option: D
Explanation:

Proteins are called the building blocks of body. They are needed for growth and development and to repair the normal wear and tear of the body. The body needs to digest proteins to make them available to fulfill these functions. Protein is the important part of the diet as it helps in building muscles. Hence, proteins are the major components of food which is required by the body for wear and tear.

So, the correct answer is 'Protein'.

A B
Spinach Roughage
Milk Iodine
Salt Iron
Whole grain Calcium
evs food components simple test for nutrients test for nutrients energy from different food components

  1. i-d, ii-a, iii-c, iv-d

  2. i-d, ii-c, iii-a, iv-b

  3. i-c, ii-a, iii-d, iv-b

  4. i-c, ii-d, iii-b, iv-a

Show answer
Correct Option: D
Explanation:

(i)Spinach-(c)iron -Spinach is an extremely nutrient-rich vegetable. It is a rich source of vitamin A, vitamin C, vitamin K, magnesium, manganese, iron. Spinach contains iron absorption inhibiting-substance, oxalate which can bind to the iron to form ferrous oxalate.

(ii)Milk-(d)calcium -Milk and other dairy products are sources of calcium. Calcium is a mineral that the body needs for numerous functions, including building and maintaining bones and teeth, blood clotting, the transmission of nerve impulses, and the regulation of the heart’s rhythm.
(iii)Salt-(b)iodine-Table salt contains a minute amount of the element iodine. Iodine intake in form of iodised salt prevents iodine deficiency. This deficiency may cause thyroid gland problems,
(Iv)Whole grain-(a)roughage-Fibre, also known as roughage, is the part of plant-based foods (grains, fruits, vegetables, nuts, and beans) that the body can't break down.
So, the correct option is 'i-c, ii-d, iii-b, iv-a'.

Fibre in diet can be obtained through

evs food components simple test for nutrients test for nutrients energy from different food components

  1. Vegetables

  2. Fruits

  3. Cereals

  4. All of these

Show answer
Correct Option: D
Explanation:

Good sources include wheat bran, corn bran, rice bran, the skins of fruits and vegetables, nuts, seeds, dried beans and wholegrain foods. Most plant-based foods, such as oatmeal and beans, contain both soluble and insoluble fiber. The fibers helps to increase bowel movement and helps in digestion. So, the correct option is 'All of the above'.