01- The filament of electric bulge is made of tungsten.

02- The tone of tungsten is 3500 degree C.

03- CFL full name is a compact fluorescent lamp.

04- Electric current is the unit ampere.

05- Transformer AC increases (high) and decreases (upscale).

06- The unit of sound intensity is decibels.

07 – Dadasaheb Phalke Lifetime Achievement Award started in 1969.

08- The Sambar lake of Rajasthan is a lake of salt water.

09- The crater of the volcano is called crater.

10- Sudanvan delta is on the Ganges and the Brahmaputra river.

11- The highest density of population is found in the Asia continent.

12- Cuba is called sugar bowl.

13- The largest number of animals is found in India.

14- Indus is the main river of Pakistan.

15- Lactic acid is used in milking curd by milk.

16 – 01 parsek equals 3.26 light years.

17- The first battle of Panipat took place between Ibrahim Lodi and Babur in 1526.

18- Shivaji’s father was Shahaji Bhosle and mother Jijabai.

19- Humorous gas or lanphig gas is nitrous oxide.

20- All elements of the halogen group are used to make color yogic.