Rearrange the parts of the sentence in correct order. P: But the achievements of science have not come to man as a ripe apple falls in the lap of a man sitting under an apple tree. Q: Science is not just the result of observation and experience. R: It is, on the other hand , the result of centuries of hard work done by man, even at the risk of his own life or health. S: There is no doubt that science has been the greatest boon to man so far.
In 1849 Honest Abe invented a method to aid ships that got stuck on sandbars. He called it A Device for Buoying Vessels Over Shoals. It was never used.
Correct Answer: Change in quantity of money - change in rate of interest - change in investment - change in employment and output - change in price level
8. Deep blue colour is imparted to glass by the presence of