Related Questions

Which one of the following crops would be preferred for sowing in order to enrich soil with nitrogen?
A Wheat
B Mustard
C Sunflower
D Gram
Fertilizers are used primarily to enrich soil and increasing yield
A are used
B primarily
C soil
D increasing
The method of soil conservation in which different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash is called?
A Mulching
B Intercropping
C Rockdam
D Terrace farming
An objective of the National Food Security Mission is to increase the production of certain crops through area expansion and productivity enhancement in a sustainable manner in the identified districts of the country. What are those crops?
A Rice and Wheat only
B Rice, Wheat and pulses only
C Rice, Wheat, Pulses and oil seeds only
D Rice, Wheat, Pulses, oil seeds and vegetables
Which one of the following is used as a sowing agent in the preparation of soft drinks?
A Phosphoric acid
B Phosphorus acid
C Salicylic acid
D Boric acid
Which of the following crops helps in nitrogen fixation?
A Rice
B Wheat
C Beans
D Maize
Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has
A High bond dissociation energy
B Smaller atomic radius
C Stable half filled 2p sub level
D High nuclear charge
Through nitrogen fixation process nitrogen in the atmosphere is converted into
A Ammonium
B Hydroxide
C Nitrate
D Chlorite
Two men and women are entrusted with a task. The second man needs three hours more to cope up with the job than the second man and the woman would need working together. The first man, working alone, would need as much time as second man and the woman working together. The first man working alone, would spend eight hours less than the double period of the time second man would spend working alone. How much time would the two men and the women need to complete the task if they all asked together?
A 1 hour
B 2 hours
C 3 hours
D 4 hours
E 5 hours
Although pocket gophers 'damage' crops, their 'tunneling' aerates the soil, which helps 'conserve' ground water and 'preventing' crosion.
A damage
B tunneling
C conserve
D preventing

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