Questions

Carbon monoxide is a common atmospheric pollutant in the world which is produced in combustion process in automobiles and industries. It has no smell and cannot be seen.

Electricity generated from coal and oil is termed as 'Thermal Power'.

Virat Kohli surpasses Brian Lara with sixth Test double hundred as captain.

After reaching the milestone, Virat Kohli became the first captain to score six double tons in Test cricket. He has also become the first player to score six double centuries in just a span of 17 months. He also became the second Indian to score back-to-back double centuries, only after Vinod Kambli.

Apart from him, the only other cricketers who have scored back-to-back double Test tons are Wally Hammond, Don Bradman, Kambli, Kumar Sangakkara and Michael Clarke.

Ireland

A group of emus is called as a mob. Emus is a kind of bird which is next to ostrich in its size.

Metamorphism is the change of minerals or geologic texture in pre-existing rocks, without the protolith melting into liquid magma. The change occurs primarily due to heat, pressure, and the introduction of chemically active fluids.

The parent rock must be in solid form. Tons of pressure must be applied for metamorphism to happen. The process must take place underground.