Choose the correct one

(a)

km > mm > cm > m

(b)

km > mm > m > cm

(c)

km > m > cm > mm

(d)

km > cm > m > mm

Which among the following is an oscillatory motion?

(a)

Rotation of the earth about its axis

(b)

Revolution of the moon about the earth

(c)

To and fro movement of a vibrating string

(d)

All of these.

Lighter impurities like dust when mixed with rice or pulses can be removed by __________

(a)

filtration

(b)

sedimentation

(c)

decantation

(d)

winnowing

The habitat of water hyacinth is

(a)

Aquatic

(b)

Terrestrial

(c)

Desert

(d)

Mountain

Birds fly in the air with the help of

(a)

heavy and strong Bones

(b)

Soft and thick Bones

(c)

Hollow and light Bones

(d)

Flat and thick Bones

Bacteria are very small _________ microorganism.

(a)

Prokaryotic

(b)

Eukaryotic

(c)

Protozoa

(d)

Acellular

Who is the computer’s first programmer?

(a)

Lady Wellington

(b)

Augusta ado Lovelace

(c)

Mary Curie

(d)

Mary Comb

The unit of heat is

(a)

newton

(b)

joule

(c)

volt

(d)

celsius

Choose the symbol for battery

(a)

(b)

(c)

(d)

_____________

Out of the following an example of a desirable change is

(a)

rusting

(b)

change of seasons

(c)

earthquake

(d)

flooding

Nitrogen is used in the food packaging industry because it ________________

(a)

provides colour to the food

(b)

provides oxygen to the food

(c)

adds proteins and minerals to the food

(d)

keeps the food fresh

Most organelles in an eukaryotic cell is found in the

(a)

Cell wall

(b)

cytoplasm

(c)

nucleus

(d)

Vacuole

Name the cable that connects CPU to the Monitor

(a)

Ethernet

(b)

Power Cord

(c)

HDMI

(d)

USB

Magnets lose their properties when they are

(a)

used

(b)

stored

(c)

hit with a hammer

(d)

cleaned

About 30% of the fresh water is found in?

(a)

glaciers

(b)

ground water

(c)

other sources of water

(d)

0.3%