Acid rain is caused due to pollution of atmosphere by
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The element with the highest electron affinity among halogens is
In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
ab_ _abbc_aa_bbb
30% discount is offered on an item. By applying a promo code the customer wins 20% cash back. What is the effective discount?
An example of longitudinal waves (in gas as a medium) is ______.
Which of the following is a greenhouse gas or a gas, which can deplete the ozone layer?
The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 4% per annum is Rs 8. The sum is ______.
In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.
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