532 + Mcqs in Science McqOptions

1.	The element which easily get magnetized and demagnetized is
A.	iron
B.	steel
C.	copper
D.	silver
Answer» B. steel

Discussion

2.	The region surrounded a magnet is called
A.	magnetic force
B.	magnetic field
C.	magnetic circle
D.	magnetic energy
Answer» C. magnetic circle

Discussion

3.	Magnetic materials include
A.	steel
B.	iron
C.	nickel
D.	all of them
Answer» E.

Discussion

4.	Ceramic magnets are made of
A.	ferrites
B.	alnico
C.	magnetite
D.	copper
Answer» B. alnico

Discussion

5.	Porcupine puffer fish makes its appearance bigger by
A.	camouflage
B.	mimicry
C.	inflating
D.	blending
Answer» D. blending

Discussion

6.	Animal which is being hunt down is called
A.	predator
B.	prey
C.	scavenger
D.	wild animal
Answer» C. scavenger

Discussion

7.	An example of air breathing fish which is modified for aestivation is
A.	lung fish
B.	ray
C.	eel
D.	dolphin
Answer» B. ray

Discussion

8.	The mutual relationship between two organism both benefiting each other is called
A.	symbiosis
B.	mutualism
C.	parasitism
D.	food chain
Answer» C. parasitism

Discussion

9.	A field community have organisms
A.	fungi
B.	turtle
C.	star fish
D.	shell fish
Answer» B. turtle

Discussion

10.	The primary colors of light includes
A.	red
B.	green
C.	blue
D.	all of them
Answer» E.

Discussion

11.	The band of colored light which make up white light is called
A.	spectrum of light
B.	band of light
C.	rainbow
D.	white light colors
Answer» B. band of light

Discussion

12.	An instrument which enables us to see distant objects clearly is
A.	microscope
B.	telescope
C.	kaleidoscope
D.	periscope
Answer» C. kaleidoscope

Discussion

13.	The partial shadow is called
A.	umbra
B.	penumbra
C.	screen
D.	source
Answer» C. screen

Discussion

14.	A snail crawls at the speed of
A.	1.7 m/s
B.	0.03 m /s
C.	25m/s
D.	10m/s
Answer» C. 25m/s

Discussion

15.	Heart is made of specialized
A.	cardiac muscles
B.	connective tissues
C.	both a and b
D.	skeletal sphincters
Answer» D. skeletal sphincters

Discussion

16.	The distance which is travelled by an average red blood cell is equal to
A.	1500 km
B.	1200 km
C.	2100 km
D.	5100 km
Answer» B. 1200 km

Discussion

17.	There is higher concentration of oxygen in
A.	inhaled air
B.	exhaled air
C.	circulated air
D.	deoxygenated air
Answer» B. exhaled air

Discussion

18.	Respiration which takes place in the absence of oxygen is called
A.	cellular respiration
B.	aerobic respiration
C.	anaerobic respiration
D.	breathing
Answer» D. breathing

Discussion

19.	Blood collects oxygen from inhaled air and gives off carbon dioxide in the
A.	lungs
B.	liver
C.	kidneys
D.	heart
Answer» B. liver

Discussion

20.	Iron-rich igneous rock includes
A.	granite
B.	obsidian
C.	basalt
D.	all of them
Answer» D. all of them

Discussion

21.	Ashes and rock fragments cool and settle on earth's surface can form volcanic rock like
A.	tuff
B.	pumice
C.	obsidian
D.	granite
Answer» B. pumice

Discussion

22.	A comparison between marble and limestone shows marble is more
A.	vulnerable
B.	harder
C.	weaker
D.	smaller
Answer» C. weaker

Discussion

23.	A which is mainly composed of fossils cemented by calcium carbonate is
A.	Shelly limestone
B.	chalk
C.	oolitic limestone
D.	all of them
Answer» B. chalk

Discussion

24.	A bacterial cell lacks
A.	flagella
B.	chromosome
C.	cell wall
D.	nucleus
Answer» E.

Discussion

25.	Anti-microbial compounds includes
A.	antiseptic
B.	disinfectants
C.	both a and b
D.	antibiotics
Answer» D. antibiotics

Discussion

26.	The important decomposers include
A.	bacteria
B.	fungi
C.	both a and b
D.	virus
Answer» D. virus

Discussion

27.	Proteins which defend body are called
A.	antigens
B.	antibodies
C.	disinfectant
D.	antiseptics
Answer» C. disinfectant

Discussion

28.	The enzymes which digest the outer layer of bacteria are called
A.	lysosomes
B.	chromosomes
C.	ribosome
D.	Golgi bodies
Answer» B. chromosomes

Discussion

29.	Mercury is
A.	harmless
B.	safe
C.	non-toxic
D.	poisonous
Answer» E.

Discussion

30.	In melting of ice cube the heat gain
A.	melts ice
B.	increase temperature
C.	gain energy
D.	release energy
Answer» B. increase temperature

Discussion

31.	A joint which is made between adjoining rails to expand without bending is called
A.	rail joint
B.	sliding joint
C.	expansion joint
D.	contraction joint
Answer» C. expansion joint

Discussion

32.	Heat loss may help the matter to
A.	expand
B.	contract
C.	spread
D.	stable
Answer» C. spread

Discussion

33.	Railway tracks have gaps between them to deal with expansion in
A.	hot days
B.	cold days
C.	winters
D.	snow fall
Answer» B. cold days

Discussion

34.	Demand for transport and production of goods have increased due to excessive
A.	consumption
B.	wastage
C.	recycling
D.	reducing
Answer» B. wastage

Discussion

35.	People should be banned to hunt in forest or collect wild plants to ensure protection of
A.	wild life
B.	ecosystem
C.	food chain
D.	food web
Answer» B. ecosystem

Discussion

36.	Sharks are hunted to create delicacy in Chinese cuisine by its
A.	jaws
B.	fins
C.	eyes
D.	tail
Answer» C. eyes

Discussion

37.	Global warming refers to
A.	drastic changes in climate
B.	everywhere will be hot climate
C.	everywhere will be freezing
D.	some warmer other colder
Answer» E.

Discussion

38.	When forests are cleared on a very large scale by cutting or burning them down it is
A.	forestation
B.	deforestation
C.	plantation
D.	incantation
Answer» C. plantation

Discussion

39.	During decomposition of buried waste explosion can occur due to production of gas
A.	oxygen
B.	methane
C.	carbon dioxide
D.	nitrogen
Answer» C. carbon dioxide

Discussion

40.	Animal which is hunted for its glands which is used to make perfumes is
A.	deer
B.	cat
C.	antelope
D.	duck
Answer» B. cat

Discussion

41.	Many animals have become endangered species due to
A.	over hunting
B.	over feeding
C.	global warming
D.	forestation
Answer» B. over feeding

Discussion

42.	Technology can be use to harness renewable sources of
A.	energy
B.	food
C.	light
D.	heat
Answer» B. food

Discussion

43.	Algae grows on surface of water and hence the becomes barrier for plants in water by blocking
A.	sunlight
B.	heat
C.	fresh water
D.	temperature
Answer» B. heat

Discussion

44.	The animals which feed on plants are called
A.	herbivores
B.	carnivores
C.	omnivores
D.	ovivores
Answer» B. carnivores

Discussion

45.	Producers are mainly
A.	plants
B.	animals
C.	rocks
D.	micro-organisms
Answer» B. animals

Discussion

46.	Factors within an environment interact and affect
A.	each other
B.	other species
C.	environment
D.	habitat
Answer» B. other species

Discussion

47.	The study of interactions among organism and between a biotic and biotic environment is called
A.	ecology
B.	zoology
C.	botany
D.	biochemistry
Answer» B. zoology

Discussion

48.	In aquatic animals the important physical factor is
A.	light
B.	temperature
C.	pressure
D.	volume
Answer» C. pressure

Discussion

49.	Iron-rich igneous rocks are denser than rocks which are rich in
A.	silica
B.	Sulphur
C.	cobalt
D.	calcium
Answer» B. Sulphur

Discussion

50.	Gneiss has been transformed from
A.	sandstone
B.	limestone
C.	igneous rock
D.	shale
Answer» D. shale

Discussion

Explore topic-wise MCQs in Testing Subject.

The element which easily get magnetized and demagnetized is

The region surrounded a magnet is called

Magnetic materials include

Ceramic magnets are made of

Porcupine puffer fish makes its appearance bigger by

Animal which is being hunt down is called

An example of air breathing fish which is modified for aestivation is

The mutual relationship between two organism both benefiting each other is called

A field community have organisms

The primary colors of light includes

The band of colored light which make up white light is called

An instrument which enables us to see distant objects clearly is

The partial shadow is called

A snail crawls at the speed of

Heart is made of specialized

The distance which is travelled by an average red blood cell is equal to

There is higher concentration of oxygen in

Respiration which takes place in the absence of oxygen is called

Blood collects oxygen from inhaled air and gives off carbon dioxide in the

Iron-rich igneous rock includes

Ashes and rock fragments cool and settle on earth's surface can form volcanic rock like

A comparison between marble and limestone shows marble is more

A which is mainly composed of fossils cemented by calcium carbonate is

A bacterial cell lacks

Anti-microbial compounds includes

The important decomposers include

Proteins which defend body are called

The enzymes which digest the outer layer of bacteria are called

Mercury is

In melting of ice cube the heat gain

A joint which is made between adjoining rails to expand without bending is called

Heat loss may help the matter to

Railway tracks have gaps between them to deal with expansion in

Demand for transport and production of goods have increased due to excessive

People should be banned to hunt in forest or collect wild plants to ensure protection of

Sharks are hunted to create delicacy in Chinese cuisine by its

Global warming refers to

When forests are cleared on a very large scale by cutting or burning them down it is

During decomposition of buried waste explosion can occur due to production of gas

Animal which is hunted for its glands which is used to make perfumes is

Many animals have become endangered species due to

Technology can be use to harness renewable sources of

Algae grows on surface of water and hence the becomes barrier for plants in water by blocking

The animals which feed on plants are called

Producers are mainly

Factors within an environment interact and affect

The study of interactions among organism and between a biotic and biotic environment is called

In aquatic animals the important physical factor is

Iron-rich igneous rocks are denser than rocks which are rich in

Gneiss has been transformed from