Question
The sudden fall of atmospheric pressure indicates
–Solution
Atmospheric pressure is basically the weight of air in the atmosphere above the reservoir, so the level of mercury continues to change until the weight of mercury in the glass tube is exactly equal to the weight of air above the reservoir.
Which of the following scientists invented steam engine?
A mixture of carbon monoxide and hydrogen is known as ______
The sound produced by a bat is –
_____ are a group of chemicals that influence cell division and shoot formation.
Why is commercial nitric acid typically yellow or brown in color?
Which of the following substances is classified as a carbohydrate?
Who among the following is known for the discovery of atomic-bomb?
Which of the following substances will turn red litmus paper blue?
The device that converts AC into DC is:
Rod of which of the following metal is used in nuclear reactors to slow down the speed of the neutrons?
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