Questions

___________ gases absorb long wave (infrared) radiation from the earth and emit it again towards the earth.

The scientific name of human being is?

The oldest oil field in Asia is located in

In the following items, each passage consists of six sentences. The first and the sixth sentence are given in the beginning as S1 and S6. The middle four sentences in each have been removed and jumbled up. These are labeled P, Q, R and S. You are required to find out the proper sequence of the four sentences and mark your response accordingly on the Answer Sheet.

S1 :Helen graduated in 1904with special honours in English.
S6:Here dress was torn and roses were snatched from her hat.
P:She was twenty-four years old.
Q:She was invited to the St. Louis Exposition in 1904 to awaken worldwide interest in the education of the deaf-blind.
R:But on Helen Keller Day the crowds got out of hand.
S:Requests were already flowing in for appearances and for magazine articles.

The proper sequence should be 

In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word.

Obligatory

In the following question, a word has been written in four different ways out of which only one is correctly spelt. Select the correctly spelt word.

Who invented Helicopter?

Who Invented Dishwasher?