Easy
Choose the word which is spelt correctly -
Explanation
Explanation
The correct spelling of the word meaning 'to make dirty or contaminated' is 'pollute' — with a single 'p', double 'l', and ending in '-lute'. The other options rearrange or double the letters incorrectly. So the correctly spelt word is pollute, option (1).
PRO TIP
Re-check your working by substituting the answer back into the original question.