In unicellular organisms, all functions like digestion, respiration and reproduction are performed by a how many cells (s)?

• 1

• 2

• 3

• 4

Who invented the vacuum pump?

• Ottovon Guericke

• Cai Lun

• Melitta Bentz

• William Henry Fox Talbot

In India, the Air (Prevention and Control of Pollution) Act came into force in 1981, but was amended in ........... to include noise as an air pollutant.

• 1987

• 1997

• 2007

• 2017

PET is a very familiar form of ............... It is used for making bottles.

• nylon

• acrylic

• polyester

• rayon

What is the unit of resistance?

• Ohm

• Farad

• Henry

• Weber

Reflection from a smooth surface like that of a mirror is called ...............reflection.

• regular

• irregular

• diffused

• fused

In April 2017, Prime Minister Narendra Modi inaugurated phase-I (Link-2) pipeline canal of the ambitious Saurashtra Narmada Avtaran Irrigation (SAUNI) in which state?

• Rajasthan

• Uttar Pradesh

• Gujarat

• Madhya Pradesh

Which of the following gases is heavier than oxygen?

• Carbon dioxide

• Ammonia

• Methane

• Helium

Who was the winner of 2017 Australian Grand Prix?

• Sebastian Vettel

• Lewis Hamilton

• Valtteri Bottas

• Kimi Raikkonen

Which of the following is not among the three different forms of 'if' statement?

• if

• if else

• if and

• if else if else