Question
When was the Montreal Protocol signed with the aim of
stopping the production and use of ozone-depleting substances like CFCs?Solution
The Montreal Protocol was signed on September 16, 1987, with the aim of stopping the production and use of ozone-depleting substances like CFCs.
If the letters of the Word SINHA are arranged in all possible ways and these words are written out as in Dictionary, then the rank of the word SINHA is
- Seven books out of which 4 are novels and rest are comics have to be arranged on a shelf. Find the number of ways of arrangement in which all four novels a...
History books are always together and also Geography books are always together?
Geography books are never together.
How many four digit numbers greater than 5000 can be formed with the digits 4 ,5, 7, 8, and 9? Â
How many different words can be formed with the letters of the word PRACTICE such that each of the word begin with E and ends with R?
- How many four-letter words without repetition having exactly two vowels can be formed by using the letters of the word "TRIANGLE"?
How many different words can be formed with the letters of the word PRACTICE such that each of the word begin with E and ends with R?
In how ways can the selection be made so that a particular member is always included?
In how many ways can the letters of the word ‘MEDICAL’ be rearranged so that the vowels never come together?
