Tag: evs

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Questions Related to evs

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

Crop rotation is employed for

  1. Increasing nitrogen content of soil

  2. Checking soil erosion

  3. Community development

  4. Enhancing soil fertility
Reveal answer Fill a bubble to check yourself
D Correct answer
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'

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

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

  1. Sugar-beet

  2. Palymyra palm

  3. Sugarcane

  4. Sweet potato
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sugar-beet is known for its high salt tolerance and ability to grow in saline or sodic soils. Sugarcane, by contrast, is generally sensitive to high salinity.

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

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

  1. Methane in infected part

  2. Hydrogen Sulphide in spore mass

  3. Trim ethylamine in spore mass

  4. Alcohol in feted plants
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Wheat infected with hill bunt or stinking smut produces spores that release trimethylamine, which gives the infected crop a characteristic rotting fish or foul odour.

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

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

  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
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.

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

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

  1. Mixed cropping

  2. Multiple cropping

  3. Rotation cropping

  4. Inter cropping
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

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

Improper use of land converts fertile land into unusable land.

  1. True

  2. False

  3. Nither

  4. Either
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Improper land use through overcultivation, overgrazing, or poor irrigation leads to soil degradation, converting fertile land into unusable barren land. This is a well-established principle in soil science and agricultural management.

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

Dietary fibers are composed of

  1. Cellulose

  2. Amylase

  3. Proteins

  4. Unsaturated fats
Reveal answer Fill a bubble to check yourself
A Correct answer
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'.

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

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

  1. Vitamins

  2. Minerals

  3. Salt

  4. Protein
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.

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

  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
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.

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

Fibre in diet can be obtained through

  1. Vegetables

  2. Fruits

  3. Cereals

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.