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9th Grade > Biology

IMPROVEMENT IN FOOD RESOURCES MCQs

Total Questions : 56 | Page 5 of 6 pages
Question 41.


Which of the following is incorrectly matched?


  1.     Fats - Oils
  2.     Vitamins - Pizza
  3.     Carbohydrates - Cereals
  4.     Proteins - Pulses
 Discuss Question
Answer: Option B. -> Vitamins - Pizza
:
B
Nutrients in the right proportions are required for the overall growth of our body.
Food items like oil, cheese, ghee, etc., are rich sources of fats.
Vitamins and minerals are present in fruits and vegetables.
Cereals, potato, rice, etc., are rich in carbohydrates.
Protein-rich food includes egg, meat, milk, meat, etc.
From the options, vitamins-pizza is a wrong match, as pizza is junk food and vitamins are mostly provided by vegetables and fruits.
Question 42.


Which of these is a macronutrient used by plants?


  1.     Nitrogen
  2.     Zinc 
  3.     Copper
  4.     Chlorine
 Discuss Question
Answer: Option A. -> Nitrogen
:
A

  The macronutrients in plants include nitrogen, phosphorus and potassium (NPK). These elements are known as macronutrients because the plants require them in large quantities. This is why most plant fertilisers consist of NPK primarily.
  Apart from these, for proper functioning and metabolic activities of the plant, they also need many micronutrients such as zinc, chlorine, copper, boron, iron, magnesium, etc.


Question 43.


Which of the following methods can be used to control the growth of weeds on the fields?


  1.     Excess use of water
  2.     Crop rotation
  3.     Intercropping
  4.     Excess use of chemicals
 Discuss Question
Answer: Option B. -> Crop rotation
:
B and C

Following methods can be used to control the growth of weeds:
i. Proper use of chemicals (weedicides)
ii. Proper seed bed preparation
iii.Sowing of crops on time
iv. Intercropping and crop rotation


Question 44.


Animals which provide milk are called ___ animals.


  1.     milch
  2.     dairy 
  3.     draught
  4.     pet
 Discuss Question
Answer: Option A. -> milch
:
A and B
Animals which provide milk are called milch animals or dairy animals. For example: goats, buffalo, cows, etc. 
Question 45.


Broiler chickens are fed with vitamin-rich supplementary feed for good growth rate and better feed efficiency.


  1.     True
  2.     False
  3.     draught
  4.     pet
 Discuss Question
Answer: Option A. -> True
:
A
Broiler Chickens Are Fed With Vitamin-rich Supplementary Fee...
Broiler chickens are fed with vitamin-rich supplementary feed for good growth rate and better feed efficiency. Care is taken to avoid mortality and to maintain feathering and carcass quality. They are produced as broilers and sent to market for meat purposes.
Question 46.


Cattle used for farm labour are called draught animals.


  1.     True
  2.     False
  3.     draught
  4.     pet
 Discuss Question
Answer: Option A. -> True
:
A
Cattle are reared for two main purposes.
i) Cattle working in farms are called draught animals. For example- Bull, Donkey.
ii) Cattle producing milk known as milch/dairy animals. For example- Red Sindhi, Sahiwal cows.
Question 47.


An abiotic factor which affects crop production is____.


  1.     pest
  2.     weed
  3.     temperature
  4.     bacteria
 Discuss Question
Answer: Option C. -> temperature
:
C

The factors which influence crop production can be grouped into two types: biotic and abiotic. The factors which are related to living beings are called biotic factors. Non-living factors are called abiotic factors. For example, salinity, temperature etc.


Question 48.


Crop variety improvement is done to achieve which of the following objectives?


  1.     Higher yield
  2.     Degraded quality of the agricultural products
  3.     Lesser resistance to insects
  4.     Lesser resistance to pests
 Discuss Question
Answer: Option A. -> Higher yield
:
A

The main goals of crop variety improvement are:
i. higher yield
ii. improved quality
iii.change in maturity period
iv. wider adaptability
v. desirable agronomic (plant/crop) characteristics 


Question 49.


Animal based farming includes management of:



  1. Goat

  2. Cow

  3. Sheep


  1.     Only 1
  2.     2 and 3
  3.     3 and 1 
  4.     1, 2, and 3
 Discuss Question
Answer: Option D. -> 1, 2, and 3
:
D

Animal husbandry includes scientific management of animal livestock. It includes rearing of animals such as goat, sheep, cattle, hen, pigs etc. These animals are reared for milk, meat or for farm work.


Question 50.


Small storage reservoirs which intercept and store the run-off of small catchment area are called___.


  1.     Canals
  2.     Wells
  3.     Tanks
  4.     Watershed
 Discuss Question
Answer: Option C. -> Tanks
:
C

Small storage reservoirs which intercept and store the run-off of small catchment area are called tanks. Tanks are an important source of irrigation for far-flung villages. It acts as a artificial reservoir of any size.


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