Who was the first cosmonaut?
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The ratio of pure gold in 18 carat gold is 1 60% 2 75% 3 80% 4 100%
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An element that does not occur in nature but can be produced artificially is 1 Thorium 2 Radium 3 Plutonium 4 Uranium
difference between typewriter and computer?
Diamond is harder than graphite because of 1 Difference of layers of atoms 2 Tetrahedral structure of diamond 3 Difference of crystalline structures 4 None of these
Using an applied force of a Newton across one meter is known as a:
which croup is sown on the largest area in india? 2)holandric genes occur exclusiely on? 3)
If today is Saturday what day will it be from 500 days?
What is super nova?
Which of the following metals was first discovered by man? 1 Bronze 2 Silver 3 Iron 4 Copper
When an iron nail gets rusted, iron oxide is formed 1 Without any change in the weight of the nail 2 With increase in the weight of the nail 3 With decrease in the weight of the nail 4 None of these
Where did the largest reflector telescope situated?
difference between ancient age,middle age & modern age.