Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

A blanket of gases surrounding the planet is known as

A. ozone
B. temperature
C. season
D. atmosphere
Answer» E.
2.

The chemical formula of ozone is

A. O3
B. O2
C. O4
D. O5
Answer» B. O2
3.

There is no boundary between atmosphere and space, so the density of atmosphere decreases with

A. same height
B. increasing altitude
C. constant height
D. decreasing height
Answer» C. constant height
4.

Microorganisms responsible for food poisoning and food spoilage is

A. E.coli
B. salmonella
C. staphylococcus
D. cyano bacteria
Answer» B. salmonella
5.

Influenza is a

A. viral disease
B. fungal disease
C. bird's flu
D. vaccine
Answer» B. fungal disease
6.

In recent passed years some parts of Asia had an outbreak of

A. bird's flu
B. chicken pox
C. measles
D. mumps
Answer» B. chicken pox
7.

Type of bacteria which can prepare its own food from sunlight is called

A. cyanobacteria
B. salmonella
C. staphylococcus
D. E.coli
Answer» B. salmonella
8.

Athlete's foot is

A. person who run fast
B. skin disease
C. runner champion
D. broken foot
Answer» C. runner champion
9.

Sunlight is absorbed by chlorophyll in leaves, while the gaseous exchange takes place through

A. leaf stomata
B. roots
C. pollen grain
D. none of them
Answer» B. roots
10.

When methane is combusted with oxygen, the products produced are

A. nitrogen & oxygen
B. carbon dioxide & water
C. oxygen & water
D. many gases
Answer» C. oxygen & water
11.

Air is important because it is the prime cause of life on

A. Mars
B. Earth
C. Jupiter
D. Neptune
Answer» C. Jupiter
12.

Fractional distillation consists of

A. two steps
B. three steps
C. four steps
D. five steps
Answer» B. three steps
13.

The atmosphere is an important part for life on

A. Earth
B. Jupiter
C. Neptune
D. Mars
Answer» B. Jupiter
14.

The primary path by which water moves between the land and atmosphere is

A. grass
B. tree
C. plant
D. flower
Answer» C. plant
15.

A hard surface that protects the crab's internal organs is known as

A. body
B. skin
C. shell
D. skeleton
Answer» D. skeleton
16.

An example of detritivore is

A. earthworm
B. lion
C. mosquito
D. fern
Answer» B. lion
17.

Due to forcest canopy, the sunlight reaches the ground in winter, but it cannot penetrate through the canop on summer because

A. there are no leaves
B. leaves are blocking the passage of light to the ground
C. there is no sun
D. none of them
Answer» C. there is no sun
18.

They are "composite organisms" made up of two, or maybe three, completely different kinds of organisms and is called

A. woodlice
B. amoeba
C. lichens
D. fungus
Answer» D. fungus
19.

Aquatic animals breath in water through their

A. lungs
B. gills
C. nostrils
D. nose
Answer» C. nostrils
20.

Plants depend on animals and animals depend on plant hence they are called

A. interdependent
B. interlinked
C. linked
D. functional
Answer» B. interlinked
21.

Human beings eat both plants and animals hence called

A. herbivores
B. carnivores
C. omnivores
D. oviparous
Answer» D. oviparous
22.

Money plant can climb on trees by help of its

A. clasping roots
B. leaves
C. stem
D. sunlight
Answer» B. leaves
23.

Polar bears inhibit loss of heat from their body by help of their

A. small ears
B. short tail
C. both a and b
D. thick fur
Answer» D. thick fur
24.

The process by which humans and animals detect sound is known as

A. watching
B. hearing
C. talking
D. perceiving
Answer» C. talking
25.

Cochlea is a part of inner ear which look exactly like

A. round
B. snail shaped
C. oval
D. funnel
Answer» C. oval
26.

Short-sighted people are treated by using

A. medicine
B. concave lens
C. convex lens
D. lens
Answer» C. convex lens
27.

The ability to maintain a constant movement without falling is known as

A. equilibrium
B. balance
C. static
D. movement
Answer» C. static
28.

The layer that contains highly specified nerve cells and forms a three-dimensional image is known as

A. lens
B. ciliary muscle
C. cornea
D. retina
Answer» E.
29.

An uncertain explanation for any observation which can be verified by investigation is called

A. observation
B. conclusions
C. analysis
D. hypothesis
Answer» E.
30.

Air pollution is generally made by

A. factories
B. houses
C. mobiles
D. LED
Answer» B. houses
31.

Blood and its products are biohazardous which can spread infections of

A. virus
B. bacteria
C. both a and b
D. fungus
Answer» D. fungus
32.

Mercury, cyanide and chlorine are

A. toxic
B. poisonous
C. both a and b
D. harmless
Answer» D. harmless
33.

Observation, apparatus handling, comparisons, classification, communication, inferring, hypothesis and analyzing are all

A. processes
B. skills
C. both a and b
D. personal trait
Answer» C. both a and b
34.

Sugar produced by plants is usually stored in different parts of plant after converting it into

A. starch
B. glucose
C. maltose
D. sucrose
Answer» B. glucose
35.

A plant which grow well in sandy soil is

A. cactus
B. rice plant
C. bougain vilea
D. rose
Answer» B. rice plant
36.

Plants grow well and they need for it

A. sunlight
B. bulb light
C. fire
D. thermo light
Answer» B. bulb light
37.

In process of photosynthesis plants require raw materials as

A. water
B. carbon dioxide
C. both a and b
D. oxygen
Answer» D. oxygen
38.

Leaves are mostly green due to presence of a pigment called

A. chlorophyll
B. green algae
C. leucoplast
D. stomata
Answer» B. green algae
39.

In leaves, gaseous exchange takes place through tiny pores under the leaves known as

A. stem
B. stomata
C. stigma
D. pollen grain
Answer» C. stigma
40.

Compounds made up of ammonia are generally used for the manufacturing of

A. fertilizer
B. explosives
C. dyes
D. all of them
Answer» E.
41.

A method that is mainly used in separating the components of crude oil is known as

A. chromatography
B. filtration
C. evaporation
D. fractional distillation
Answer» E.
42.

Earth's atmosphere extends hundreds of kilometers above the

A. surface
B. planet
C. atmosphere
D. sky
Answer» B. planet
43.

Human respiratory system contains respiratory tract and

A. lungs
B. stomach
C. pancreas
D. liver
Answer» B. stomach
44.

If someone wants to measure size a of a bacterium, one will measure in

A. centimeters
B. millimeter
C. micrometers
D. kilometers
Answer» D. kilometers
45.

Space which is occupied by a substance is measured in

A. density
B. area
C. volume
D. mass
Answer» D. mass
46.

The kilogram standard is kept in France which is a metal cylinder made of

A. platinum
B. iridium
C. both a and b
D. iron
Answer» D. iron
47.

To measure shorter lengths with their accurate reading we use

A. measuring tapes
B. meter ruler
C. Vernier caliper
D. all of them
Answer» D. all of them
48.

In SI system the unit of volume is

A. meter square
B. cubic meter
C. meter
D. kilometers
Answer» C. meter
49.

Rays of light can never be

A. bent
B. seen
C. reflected
D. reached
Answer» B. seen
50.

Materials which allow most of light rays to pass through them are called

A. transparent materials
B. translucent material
C. opaque materials
D. abstract materials
Answer» B. translucent material