Questions

A restrictive clause is one that limits the meaning of the word it describes.

For example :: 

The girl who lives next door is beautiful.

This restrictive clause limits "the girl" to say it's specifically the one next door.

Upari refers to a category of tenancy tenure held under the Maratha Regime.The Government used to assign land to various cultivators for cultivation and getting maximum revenue. The land allotted to original settlers of villages came to be known as Mirasi land whereas the land assigned to the migrant settlers was known as the Upari land.

Sanjay Kothari, Chairman of Public Enterprises Selection Board, has been appointed as Secretary to President-elect Ram Nath Kovind.

Dust particles such as coal dust(smoke) are fine particle of a solid (carbon in the case of smoke) dispersed in air. They are colloidal systems and the particles are charged either positive or negative. In an applied electrical field, they are attracted towards the opposite electrodes. Movement of the particles towards the electrodes is known as 'electrophoresis'. Hence electrophoresis is applied to remove smoke within the chimeny itself without allowing it to escape into the air and cause nuisance.

The color of giraffe's tongue is purple or bluish to prevent it from sunburn as it lives in tropical regions.