The staple food of the Vedic Aryan was

• Barley and rice

• Milk and its products

• Rice and pulses

• Vegetables and fruits

Under the ‘National Electric Mobility Mission Plan’, the government wants to see 6-7 million electric and hybrid vehicles on Indian roads from year ______ onwards.

• 2022

• 2020

• 2025

• 2019

The blue colour of the clear sky is due to

• Diffraction of light

• Dispersion of light

• Reflection of light

• Refraction of light

Which of the following is used in pencils ?

• Silicon

• Phosphorous

• Graphite

• Charcoal

The weight of an object will be minimum when it is placed at ?

• The North Pole

• The South Pole

• The Equator

• The center of the Earth

In fireworks, the green flame is produced because of

• Sodium

• Potassium

• Barium

• Mercury

What does airbag, used for safety of car driver, contain?

• Sodium bicarbonate

• Sodium azide

• Sodium nitrite

• Sodium peroxide

Which one of the following types of laser is used in laser printers?

• Semiconductor laser

• Dye laser

• Gas laser

• Excimer laser

Which of the following parts of the sun is easily visible only during a total solar eclipse?

• core

• photosphere

• sunspots

• corona

Potassium Permanganate is used for purifying drinking water, because

• it is a sterilising agent

• it dissolves the impurities of water

• it is a reducing agent

• it is an oxidising agent