Polio is a disease caused by which of the following?
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In 1981, ISRO launched India's first geostationary satellite called -
There are total _________ parliamentary seats (Lok Sabha constituency) in West Bengal.
Comptroller and Auditor General of India is appointed by ______.
Black soil is also known by which of the following name ?
____________ scheme by the Central Government states that an insurance of 10 lakhs will cover each passenger traveling by Indian Rail while booking a ticket if an amount of 92paise is paid.
What is the reason for formation of Mirage in desert?
The radius of curvature of a concave mirror is 30 cm. Following Cartesian Sign Convention, its focal length is expressed as