When was the Army Medical Corps Raising Day was celebrated ?

Identify the segment in the sentence which contains the grammatical error.

Some of us are plan to go for a movie tonight.

Foresight: Anticipation: Insomnia:? 

Removal of land by the action of air and water is called?

Are converted to information by computer process?

In each of the following questions, sentences are given with blanks to be filled in with an appropriate word (s). Four alternatives are suggested for each question. Choose the correct alternative out of the four and indicate your choice for the correct answer.

Simran was reading a book _____ waiting for the bus.