Opportunity costs exist because
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Which of the following induces nitrogen fixation in soil?
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Which of the following was invented by Sir Humphry Davy?
Who Invented Post-it note?
Malala Yousafzai and Kailash Satyarthi were jointly presented with which award?
The number of students in a class is increased by 20% and the number now becomes 66. Initially the number was
The Non Co-operation Movement started in which year?
Non-cooperation movement was started by Mahatma Gandhi in 1920 to drive the British out of the country.
Battle of Plassey was fought in ______.