Chemistry
Which one of the following acids is used in battery ?

Hydrofluoric acid
Sulphurous acid
Sulphuric acid
Hydrochloric acid

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Water cycle refers to

Constant movement of water from ocean to land and back to ocean once again
Water distribution in relatively dry areas
An integrated attempt to recycle water in relatively arid regions
Scientific management of water in areas excessively plagued with water-logging

ANSWER DOWNLOAD EXAMIANS APP