Find the "odd one out".

When we see an object, the image formed on the retina is ________

Which cells in pancreas produce Insulin ?

Spraying of DDT on crops causes pollution of __________

Select the synonym of

bounder

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

The action of repeating something aloud from memory.

Select the word with the correct spelling.

In the following question, sentence given with blank is to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

The enzyme was the _____________ that triggered the chemical reaction.