CBSE Class 9 Biology Improvement In Food Resources Worksheet Set 02

Question: Which one is an oil yielding plant among the following?
a) Lentil
b) Sunflower
c) Cauliflower
d) Hibiscus
Answer: b

Question: Find out the wrong statement from the following
a) White revolution is meant for increase in milk production
b) Blue revolution is meant for increase in fish production
c) Increasing food production without compromising with environmental quality is called as sustainable agriculture
d) None of the options
Answer: d

Question: Which one of the following fishes is a surface feeder?
a) Rohus
b) Mrigals
c) Common carps
d) Catlas
Answer: d

Question: Weeds affect the crop plants by
a) killing of plants in field before they grow
b) dominating the plants to grow
c) competing for various resources of crops (plants) causing low availability of nutrients
d) all of the options
Answer: c

Question: Which one of the following nutrients is not available in fertilizers?
a) Nitrogen
b) Phosphorus
c) Iron
d) Potassium
Answer: c

Question: Preventive and control measures adopted for the storage of grains include
a) strict cleaning
b) proper disjoining
c) fumigation
d) all of the options
Answer: d

Question: Which one is not a source of carbohydrate?
a) Rice
b) Millets
c) Sorghum
d) Gram
Answer: d

Question: To solve the food problem of the country, which among the following is necessary?
a) Increased production and storage of food grains
b) Easy access of people to the food grain
c) People should have money to purchase the grains
d) all of the options
Answer: d

Question: Which one of the following species of honey bee is an Italian species?
a) Apis dorsata
b) Apis florae
c) Apis cerana indica
d) Apis mellifera
Answer: d

Question: Cattle husbandry is done for the following purposes
(i) Milk Production
(ii) Agricultural work
(iii) Meat production
(iv) Egg production
a) (i), (ii) and (iii)
b) (ii), (iii) and (iv)
c) (iii) and (iv)
d) (i) and (iv)
Answer: a

Question: Find out the correct sentence
(i) Hybridisation means crossing between genetically dissimilar plants
(ii) Cross between two varieties is called as inter specific hybridisation
(iii) Introducing genes of desired character into a plant gives genetically modified crop
(iv) Cross between plants of two species is called as inter varietal hybridisation
a) (i) and (iii)
b) (ii) and (iv)
c) (ii) and (iii)
d) (iii) and (iv)
Answer: a

Question: Which of the following are Indian cattle?
(i) Bos indicus
(ii) Bos domestica
(iii) Bos bubalis
(iv) Bos vulgaris
a) (i) and (iii)
b) (i) and (ii)
c) (ii) and (iii)
d) (iii) and (iv)
Answer: a

Question: Which of the following are exotic breeds?
(i) Brawn
(ii) Jersey
(iii) Brown Swiss
(iv) Jersey Swiss
a) (i) and (iii)
b) (ii) and (iii)
c) (i) and (iv)
d) (ii) and (iv)
Answer: b

Question: Poultry farming is undertaken to raise following
(i) Egg production
(ii) Feather production
(iii) Chicken meat
(iv) Milk production
a) (i) and (iii)
b) (i) and (ii)
c) (ii) and (iii)
d) (iii) and (iv)
Answer: a

Question: Poultry fowl are susceptible to the following pathogens
a) Viruses
b) Bacteria
c) Fungi
d) all of the options
Answer: d

Question: Animal husbandry is the scientific management of
(i) animal breeding
(ii) culture of animals
(iii) animal livestock
(iv) rearing of animals
a) (i), (ii) and (iii)
b) (ii), (iii) and (iv)
c) (i), (ii) and (iv)
d) (i), (iii) and (iv)
Answer: d

Question: Find out the correct sentence about manure
(i) Manure contains large quantities of organic matter and small quantities of nutrients.
(ii) It increases the water holding capacity of sandy soil.
(iii) It helps in draining out of excess of water from clayey soil.
(iv) Its excessive use pollutes environment because it is made of animal excretory waste.
a) (i) and (iii)
b) (i) and (ii)
c) (ii) and (iii)
d) (iii) and (iv)
Answer: b 

Fill in the blanks

Question: Photoperiod affect the __________.
Answer: Flowering of plants
 

Question: Pigeon pea is a good source of __________.
Answer: protein

Question: A total of __________ nutrients are essential to plants.
Answer: 16

Question: Wheat, gram, pea, mustard are __________ crops.
Answer: Rabi

Question: Soil supply __________ nutrients to plants.
Answer: 13

Question: Berseem is an important __________ crop.
Answer: fodder

Question: __________ and __________ are supplied by air to plants.
Answer: Carbon and oxygen

Question: The crops which are grown in rainy season are called __________ crops.
Answer: Kharif

Question: __________ crop grows in winter season.
Answer: Rabi

Question: __________ is supplied by water to plants.
Answer: Hydrogen

Question: Paddy, maize, green gram and black gram are __________ crops.
Answer: Kharif

Question: Photoperiod affect the __________.
Answer: Flowering of plants

Question: __________ nutrients are required in large quantity and called as __________.
Answer: Six, macronutrients

Question: __________ are rich in vitamins.
Answer: vegetables

Question: Rabi crops are cultivated from __________ to __________.
Answer: November to April

Question: __________ nutrients are needed in small quantity for plants and are called __________.
Answer: seven, micronutrients

Question: Kharif crops are cultivated from __________ to __________.
Answer: June to October