If the increase or decrease of one product increases or decreases the other product, the relationship between both the products is known as:

The search for security, peace and happiness is   built-in in all beings, but sadly it remains a futile one for many.

Select the most appropriate ANTONYM of the highlighted word.

It was an impetuous decision to buy a car when he didn’t have a job.

Choose the correct synonym for the given word 

Malevolent 

Mammoth

 Find out the compound word from the following options 

Something that is not able to be changed or reversed

My favourite candidate gave up before the contest was even closed.

spiny-skinned invertebrates that are found on the ocean floor

Select the wrongly spelt word.

Choose the word that is nearest in meaning to the bold word:

Pernicious