Twenty decimetre is equal to_________

(a)

2 km

(b)

20 cm

(c)

2 metre

(d)

20 metre

Periodic motion among the following is___________

(a)

sabling swing in wind

(b)

revolution of the moon around the earth

(c)

a coconut falling from a tree

(d)

paper flight moving

A drop of water contains about____________ water particles.

(a)

10²¹

(b)

10¹²

(c)

10²²

(d)

10²⁰

___________ is the longest river in the world.

(a)

Sutlej

(b)

Yellow

(c)

Nile

(d)

Congo

Some animals spending winters in a dormant condition is called_______.

(a)

Hibernation

(b)

Aestivation

(c)

Migration

(d)

Adaptation

80% of the world production of Moringa leaves is___________

(a)

China

(b)

Germany

(c)

India

(d)

Canada

Electromagnetic train are used for public transport only in China, Japan and South Korea.

(a)

Bus

(b)

Car

(c)

Train

(d)

Vehicles

Chemists identify turmeric powder as a ______________ 

(a)

natural indicator

(b)

chemical change

(c)

physical change

(d)

chemistry

_____________ are non-living parts such as sunlight, air, water and minerals in soil.

(a)

Pollution

(b)

Pollutant

(c)

Abiotic factors

(d)

Biotic factors

Which one is Hardware includes Input and Output devices?

(a)

Hard Disk

(b)

Video player

(c)

Audio player

(d)

Drawing tools