Improvement in Food Resources Test

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Improvement in Food Resources Test - 23

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Weekly Quiz Competition

Question 1
1 / -0

Rotation of crops is carried out to

A
Increase convenience for the farmers

B
Increase variation in the mineral content of soil

C
Increase in nitrogen content of the soil

D
Increase diversity of plant habitats

Solution

The practice of growing a series of different types of crops in the same area in sequenced seasons is called crop rotation.
The advantages of crop rotation are:-
1) It helps in reducing soil erosion.
2) It increases soil fertility and crop yield.
3) The soil of farms do not get deficient of one type of nutrients.
So, the correct answer is 'Increase variation in the mineral content of soil'.
Question 2
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Rice, wheat and millets are good sources of

A
Carbohydrate

B
Proteins

C
Fat

D
Minerals

Solution

Cereals such as wheat, rice, millets, jowar and sorghum are excellent sources of carbohydrates which are the primary sources of energy for our body.
Hence the correct option is A.
Question 3
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Practices that help farmers to get more income is/are

A
Mixed farming

B
Intercropping

C
Integrated farming

D
All of these

Solution

The majority of our population depends on agriculture for their livelihood. Increasing the incomes of people working in agriculture is therefore necessary to combat the problem of hunger. Scientific management practices should be undertaken to obtain high yields from farms. For sustained livelihood, one should undertake mixed farming, intercropping, and integrated farming practices, for example, combine agriculture with livestock/poultry/fisheries/
bee-keeping.
Hence the correct option is D.
Question 4
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The shorter duration crops help the farmer :

A
By making variety economical

B
By allowing farmers to grow multiple rounds of crops in a year

C
By getting uniform maturity and easy harvesting

D
Both (A) and (B)

Solution

The short maturity period of crops helps farmers in multiple rounds of cultivation in less expenditure during a short period.Thus, overall variety improvement makes the situation more profitable, They can grow different crops several times in a year instead of just growing a single crop throughout the year.
so, the correct answer is 'Both (A) and (B)'
Question 5
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Pulses such as pea and gram are good sources of

A
Carbohydrates

B
Proteins

C
Vitamins

D
Fats

Solution

Pulses such as pea, gram, black gram and lentils are excellent sources of proteins that are essential for body growth.
Hence the correct option is B.
Question 6
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The method of incorporating desirable qualities in crop varieties is..

A
Crop- rotation

B
Hybridisation

C
Intercropping

D
Multiple cropping

Solution

Hybridization is a method of developing new traits by combining the characters of two different varieties of crops. It is a way of crop-variety improvement. Hence B is correct.
Rest others, crop-rotation, Intercropping and multiple cropping are different farming methods for crop production management.
Question 7
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What are genetically modified crops?

A
Plants which are crossed with plants of different genera

B
Plants containing genes that have been introduced into them

C
Plants having superior genes

D
None of these

Solution

Hybridisation refers to crossing between genetically dissimilar plants. This crossing may be intervarietal (between different varieties), interspecific (between two different species of the same genus) or intergeneric (between different genera). Another way of improving the crop is by introducing a gene that would provide the desired characteristic. This results in genetically modified crops.
Hence the correct option is B.
Question 8
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What is hybridisation?

A
Crossing between genetically dissimilar plants

B
Introduction of new genes into a plant

C
Fusion between male and female gametes

D
None of the above

Solution

Correct Option: A
Explanation:
Hybridization is the process of crossing two genetically different individuals to result in a third individual with a different, often preferred, set of traits. Plants of the same species cross easily and produce fertile progeny. Such plants are referred to as cross-pollinated plants.
The objective of hybridization is to combine desirable genes found in two or more different varieties and to produce pure-breeding progeny superior in many respects to the parental types.
Question 9
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Wheat, gram and peas are examples of

A
Kharif crops

B
Monsoon crops

C
Rabi crops

D
None of these

Solution

There are some crops grown during the rainy or the kharif season from the month of June to October, and some of the crops are grown in the winter season, called the rabi season from November to April. Paddy, soyabean, pigeon pea, maize, cotton, green gram and black gram are kharif crops, whereas wheat, gram, peas, mustard, linseed are rabi crops.
Hence the correct option is C.
Question 10
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Why is hybridisation done?

A
To increase yield

B
To produce plants with better pest resistance

C
To produce plants that can grow in a variety of climates

D
All of the above

Solution

Hybridisation refers to crossing between genetically dissimilar plants. It is done to improve the quality of plants so that they are resistant to pests and other stresses, produce more yield, have more desirable characteristics and to survive in different conditions.
Hence the correct option is D.

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Re-Attempt Weekly Quiz Competition

Improvement in Food Resources Test - 23

Result

Improvement in Food Resources Test - 23

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SHARING IS CARING

Question 1

Increase convenience for the farmers

Increase variation in the mineral content of soil

Increase in nitrogen content of the soil

Increase diversity of plant habitats

Solution

Question 2

Carbohydrate

Proteins

Fat

Minerals

Solution

Question 3

Mixed farming

Intercropping

Integrated farming

All of these

Solution

Question 4

By making variety economical

By allowing farmers to grow multiple rounds of crops in a year

By getting uniform maturity and easy harvesting

Both (A) and (B)

Solution

Question 5

Carbohydrates

Proteins

Vitamins

Fats

Solution

Question 6

Crop- rotation

Hybridisation

Intercropping

Multiple cropping

Solution

Question 7

Plants which are crossed with plants of different genera

Plants containing genes that have been introduced into them

Plants having superior genes

None of these

Solution

Question 8

Crossing between genetically dissimilar plants

Introduction of new genes into a plant

Fusion between male and female gametes

None of the above

Solution

Question 9

Kharif crops

Monsoon crops

Rabi crops

None of these

Solution

Question 10

To increase yield

To produce plants with better pest resistance

To produce plants that can grow in a variety of climates

All of the above

Solution

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