Questions

Biogas is produced from biomass by

The change in the optimal quantity of a good when its price changes and the consumer’s income is adjusted so that she can just buy the bundle that she was buying before the price change is called?

Myopia is a defect of eyes which is also known as

The sigmoid colon is a part of

__________ is the interaction in which one species benefits and the other is neither harmed nor benefited.

In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

The _____ of energy in India are met from both commercial and non commercial sources. The most _____ sources of energy today are coal and natural gas, hydro
electricity and nuclear power. On the other hand, firewood, cow-dung cakes and vegetable waste etc. _____ non commercial forms of energy. While non commercial
forms of energy _____ demand, coal is the _____ source of commercial energy in India.

coal is the _____ source of commercial energy in India. 

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No error'.
Inspite of the doctor's stern warning (1)/ Latika continued taking (2)/ sugars in her milk. (3)/ No Error (4)

Which of the following is NOT a radioactive element?