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

• 1

• 2

• 3

• 4

37.

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

• regular

• irregular

• diffused

• fused

What is the unit of resistance?

• Ohm

• Farad

• Henry

• Weber

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

• if

• if else

• if and

• if else if else

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

• nylon

• acrylic

• polyester

• rayon

Which of the following gases is heavier than oxygen?

• Carbon dioxide

• Ammonia

• Methane

• Helium

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

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

Who invented the vacuum pump?

• Ottovon Guericke

• Cai Lun

• Melitta Bentz

• William Henry Fox Talbot

Who was the winner of 2017 Australian Grand Prix?

• Sebastian Vettel

• Lewis Hamilton

• Valtteri Bottas

• Kimi Raikkonen