Questions

Oligopoly is market structure where a small number of large firms are there. Oligopolistic industries are characterized by a few dominant firms and substantial entry barriers.

TRAP, RST7.5, RST6.5, RST5.5, INTR.

Chetan Sharma was the first Indian to pick a World Cup hat-trick, doing so against New Zealand in 1987. Mohammad Shami achieved the feat in the match against Afghanistan on June 22, 2019.

Electronic Flash differs from the consumable bulb flash in important aspects. Instead of creating light by burning up in an atmosphere containing oxygen, a consumable material (each bulb being used therefore only once), it produces a brilliant incandescent by discharging a current for a brief instant through a rarified gas, usually xenon. The gas glows every time the discharge is made through it but it is not consumed, so that many thousands of flashes are obtainable from a single tube, which helps to offset the much higher cost of the initial apparatus.

.mp3 is audio file extension.

A nurse cannot diagnose a patient among the given options. 

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms activities.