Which type of radiations are absorbed by the upper layer of the atmosphere
1). Radiowaves
2). Infrared
3). Visible
4). Ultraviolet
1. Oxide of which of the following will turn red litmus blue?
2. Fermentation of milk to curd is due to :
3. The aqueous solution of potassium chloride is
4. Methane an air pollutant is produced ______.
5. The laws of electrolysis are given by
6. Which of the following is not an example of Allotrope?
8. Which of the following is used in making smoke bombs
10. The long range potential of nu I clear energy in India depends on i its reserves of