Confusing English Words! | Fix Common Vocabulary Mistakes & Errors

Let w denotes the set of words in the English dictionary. Define the relation R by R = {(x, y) in W xx W} , the words x and y have at least one letter in common, then R is

A code word is to consist of two distinct English alphabets followed by two distinct number from 1to9. for example, C A23 is a code word. How many such code words are there? How many of them end with an even integer?

The letters of the word COCHIN are permuted and all the permutations are arranged in an alphabetical order s in an English dictionary. The number of words that appear before the word COCHIN is a. 360 b. 192 c. 96 d. 48

The letters of the word COCHIN are permuted and all the permutations are arranged in an alphabetical order s in an English dictionary. The number of words that appear before the word COCHIN is a. 360 b. 192 c. 96 d. 48

Answer the following questions in one word or one sentence: What is the common name of sodium hydroxide?

Fill in the blanks (a) Plants are called as ______ because they fix carbon dioxide. (b) in an ecosystem dominated by trees, the pyramid (of numbers ) is ______type. (c) In aquatic ecosystem, the limiting factor fro the productivity is _______ (d) Common detritivores in our ecosystem are _______ (e) The major reservoir of carbon on earth is _______