Chapter 15 – Improvement in Food Resources

 Some chemical elements are required in large amounts by the plants for their proper growth. These inorganic elements are called macronutrients or macroelements. Which of the following elements do not come under the category of macronutrients?
i. Phosphorous
ii. Manganese
iii. Magnesium
iv. Iron

 Manure is organic matter used to enrich the soil with nutrients and also improves the physical structure of soil. Following are given some statements regarding the composition or effects of using manure. 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 the excess of water from clayey soil
iv. Its excessive use pollutes the environment because it is made of animal excretory waste

Weeds are the unwanted plants that grow along with the cultivated plants. How do they affect the crop plants?

 Among the following pick out the correct statement.
i. Hybridization means crossing between genetically dissimilar plants
ii. Cross between two varieties is called as inter specific hybridization
iii. Introducing the genes of desired characters into a plant gives genetically modified crop
iv. Cross between plants of two species is called as inter varietal hybridization

Fish is an important aquatic food which is rich in proteins. The act of capturing, preservation and utilization of fishes is called fish culture.
Among the following statements choose the option which does not describe the benefit of fish culture?

The National Dairy Development Board (NDDB) designed and implemented the world’s largest dairy development programme, called “Operation Flood”, which came out to be the reason behind White Revolution in India. Can you name the man who is known as the Father of White Revolution?

There are present numerous exotic breeds of poultry which have been successfully acclimatized in India. One of the most popular exotic breeds of fowl  in India, which produces long white eggs, has a very small body size, so needs less feed for its maintenance. Choose the right name for the breed with all these characteristics.

Along with the indigenous breeds, the exotic varieties of honey bees are also widely used for commercial production of honey in India. The Italian bee, named ApisMellifera is the most commonly breed domesticated in India. Which of the following is not a reason for the preferential use of this breed?

Growing different crops in the same field in a pre-planned succession, to improve the quality and quantity of the crop yield and maintain the fertility of soil is known as:

“Drones” in the honeybee colony are stingless and are unable to gather food. Their main role is to mate with queen bee and help in breeding.Drones are born out from:

Find out the wrong statement among the following:

In order to obtain the good quality and quantity of yield in dairy and poultry farming which of the following management practices should be followed?
i. Proper housing facilities having hygienic conditions
ii. Preventing the entrance of sunlight into the cattle farms
iii. Prevention and control of diseases and pests
iv.Maintenance of proper temperature

Ronit often used to go with his father to collect milk from the milk man. One day, the milk man told his father that he is going to purchase a Murrah breed buffalo as he is not able tofulfill the demand of his customers to supply good quality milk. Ronit asked his father about the Murrah buffalo. Among the following statements which might not be the answer by his father?

Dairy animals suffer from various types of diseases, one of which are the infectious diseases. Infectious diseases are mainly caused by viruses and bacteria. These diseases are spread by contact from animal to animal. Identify which of the following are not the infectious diseases?
i. Ringworm
ii. Foot and mouth disease
iii. Salmonellosis
iv.Anaemia

Which of the following is a fungus disease causing maximum deaths of poultry birds?

How much increase in cultivable land occurred in India from 1952 to 2010?

How many nutrients are essential for plants?

Which one of the following species of the honey bee is an Italian species?

How many micronutrients are required by plants?

Which of the following are Indian cattle?
(i) Bos indicus
(ii) Bos domestica
(iii) Bos bubalis

The hybrid breed of buffalo yielding maximum milk is:

This breed of cow gives more milk:

This hybrid breed of the hen has the world record of laying maximum eggs:

Which goat is known as the queen of milk?

Which one of the following nutrients is not available in common fertilizers?

Berseem is an important _______ crop.

Blue revolution is concerned with the increase of ________ production.

_______ wool is obtained from the Kashmiri goat.

_______ are commercially produced plant nutrients.

Continuous use of fertilizers in an area can _______ soil fertility.