Question:
Give examples of fumigants.
Answer:
Common fumigants used are:
Ammonium Phosphide Methyl Bromide Ethylene DiBromide Chloropicrin
Improvement in Food Resources
Q 1.
Based on kinds of biological material used, how many types of manures are there?
Q 2.
What is the full form of IARI?
Q 3.
Name some pulses that give us proteins.
Q 4.
Fertilizers are useful for short term benefits or long-term benefits?
Q 5.
What are draught animals?
Q 6.
Out of manures and fertilizers, which one is nutrient specific?
Q 7.
From where do plants acquire the following nutrients?
(i) Nitrogen
(ii) Hydrogen
Q 8.
Fill In the Blanks :
_______ and _________ are a rich source of vitamins and minerals.
Q 9.
Manures are useful for short term benefits or long-term benefits?
Q 10.
Name the revolution which led to better and efficient production and availability of milk.
Q 11.
Fill In the Blanks :
Organic substances of animal or plant origin that is added to the soil to increase its fertility and structure are called _____.
Q 12.
Fill In the Blanks :
__________ and _________ provide us with all our animal and plant food.
Q 13.
Fill In the Blanks :
Nutrients required by plants in large quantities are called ________.
Q 14.
Name the nutrients that plants take from air?
Q 15.
List the seven micro-nutrients taken by plants?
Q 16.
What is mixed cropping?
Q 17.
Give examples of fumigants.
Q 18.
What are milch animals?
Q 20.
Define animal husbandry.
Q 21.
Fill In the Blanks :
The practice of growing two or more crops simultaneously on the same field is called _____.
Q 22.
What is domestication?
Q 23.
Give examples of Pesticides
Q 24.
Fill In the Blanks :
Vitamin ___ and ____ (A, B, C, D , K) levels are kept high in the poultry feeds.
Q 25.
What are fertilizers? Give two examples.
Q 26.
Fill In the Blanks :
Marine fish capture is done by fishing nets guided by _______ and ________.
Q 27.
Name the approaches used to enhance crop yield.
Q 29.
Give examples of commonly used irrigation systems in our country?
Q 31.
Fill In the Blanks :
Cattle used for farm labour is called ______.
Q 32.
What are Macro-nutrients?
Q 33.
What is vermicompost?
Q 34.
Define inter-cropping.
Q 35.
Fill In the Blanks :
In order to get maximum returns, different crop combinations are grown on the same field in a pre-planned succession. This process is called _______.
Q 36.
Fill In the Blanks :
Xanthium, Cyperinus rotundus and Parthenium plants generally grow along paddy plants. Such plants are called ____.
Q 37.
Fill In the Blanks :
The basic advantages of inter-cropping are that it maintains soil _____ and controls _____.
Q 38.
List the nutrients that plants absorb from soil.
Q 39.
Fill In the Blanks :
_______ and ________ are the main sources of nutrient supply to crops.
Q 40.
Name the biotic factors that affect on crop production.
Q 41.
What is the most common source of irrigation in India?
Q 42.
Give examples of two major weeds that grow during Kharif season.
Q 43.
What are the major sources of food? Name the commercial practices we perform to obtain the food.
Q 44.
Give examples of fodder crops.
Q 45.
List examples of Macro-nutrients for plants?
Q 46.
What is organic farming?
Q 47.
Fill In the Blanks :
Composting done using earthworms is called _________.
Q 48.
Name the programmes executed in India to increase food production.
Q 50.
Fill In the Blanks :
Crossing between genetically dissimilar plants is called _________.
