The gas filled in the electric bulb is:-

The human blood is divided into how many groups:-

Which is the outer most planet in the solar system;-

What is the range of pH of acid rain:-

Big bang was explosion which occur:-

Which metal is pure conductor of electricity:-

What is the third most common gas found in the air we breathe:-

Ga is the symbol of which element:-

___________ in the human body is effected by leukemia;-

The efficiency of a machine can not exceed;-

The planets visible to us  without using a telescope are _______________:-

1 nanometer =____________:-

In an electrostatic precipitators the velocity of air blown between the plants must be:-

Which chemicals are used to kill rats and mice:-

What is the number of amino acid in an insulin molecule:-

In which countries did poverty actually rise from 1981 to 2001:-

The strength of wave action depends on all these except:-

Sun revolve around the milky way in about _____________ million years:-

Matter and energy can be converted from one to the other:-

Vacuum tubes have been replaced by:-

Eugenics is the study of altering human being by changing their genetic components:-

What is carcinogens:-

The absolute value of charge on electron was determined by:-

Energy resources derived from natural organic materials are  called;-

The destruction of habitat of plants and animals is called:-