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.

Which hurricane was most damaging?

A. Hurricane Katrina
B. Hurricane Mitch
C. Hurricane Irma
D. Hurricane Harvey
Answer» C. Hurricane Irma
2.

Net incoming solar radiation is balanced by

A. Outgoing radiations from the atmosphere
B. Outgoing radiations from the earth
C. Outgoing radiations from the troposphere
D. Outgoing radiations from the biosphere
Answer» B. Outgoing radiations from the earth
3.

About 10% of sun radiations are reflected back to space from

A. ocean surface
B. Lakes surface
C. Pollution particles
D. Infrastructure radius
Answer» B. Lakes surface
4.

Almost, eighty percent, sun radiation causes heating at:

A. Reflux
B. Surface
C. Atmosphere
D. Biosphere
Answer» C. Atmosphere
5.

Plants takes in carbon dioxide and giving out:

A. Oxygen
B. Carbon dioxide
C. Carbon
D. Argon
Answer» B. Carbon dioxide
6.

In 1990s, annual economic losses from weather related disasters, approximately

A. 0.002
B. 0.005
C. 0.01
D. 0.02
Answer» B. 0.005
7.

A 'back to nature' viewpoint is neither balanced nor:

A. Affective
B. Sustainable
C. Quantitative
D. Beneficial
Answer» C. Quantitative
8.

21% of earth's atmosphere consist of:

A. Carbon dioxide
B. Oxygen
C. Carbon
D. Nitrogen
Answer» C. Carbon
9.

What did cause thousands of deaths in 1950?

A. Smog
B. Earthquakes
C. Floods
D. Volcanoes
Answer» B. Earthquakes
10.

Process involved in converting ultraviolet radiation (UV) into heat, known as

A. Inferring process
B. Process skill of science
C. Chapman process
D. Conversion process
Answer» D. Conversion process
11.

Which type of cancer is frequently growing in America?

A. Blood Cancer
B. Throat Cancer
C. Lung Cancer
D. Melanoma
Answer» E.
12.

Maize, sugarcane and millet are:

A. C2 Plants
B. C3 Plants
C. C4 Plants
D. C5 Plants
Answer» D. C5 Plants
13.

Condensation is a process of changing state from gas to:

A. Mist
B. Solid
C. vapors
D. Liquid
Answer» E.
14.

Biodiversity is a measure of number of different biological species found in a

A. Forests
B. Particular Area
C. Grassland
D. Boreal Forest
Answer» C. Grassland
15.

What does tropical rainforest provide?

A. Produce oxygen gas
B. Stabilize climate
C. Absorb carbon dioxide
D. Both b and c
Answer» E.
16.

What does a single chlorine free radical destroy ?

A. Ultraviolet radiations
B. Atmosphere
C. Biosphere
D. Ozone layer
Answer» E.
17.

'GHGs levels are determined by

A. Incoming and outgoing energy
B. Sources and sinks
C. Ultravoilet Energy
D. Infrared Energy
Answer» C. Ultravoilet Energy
18.

Which GHGs vaporise at below room temperature?

A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Argon
Answer» B. Carbon dioxide
19.

CFCs molecule has 5 to 10,000 times greater green house effect than

A. Carbondioxide Molecule
B. Nitrous Oxide
C. Nitrogen
D. Ozone
Answer» B. Nitrous Oxide
20.

When People are being forced to leave their homes, resulting migration is known as:

A. Environmental refugees
B. Environmental Problem
C. Environmental Pollution
D. Environment Degradation
Answer» B. Environmental Problem
21.

Which energy is used, stored and transferred between the earth and its atmosphere?

A. Solar Energy
B. Wave Energy
C. Nuclear Energy
D. Wind Energy
Answer» B. Wave Energy
22.

When did chloroflurocarbon invent?

A. in the late 1950s
B. in the late 1940s
C. in the late 1930s
D. in the late 1920s
Answer» E.
23.

During winter, nutrient-rich water is transferred from deep water to the

A. Upper surface layer
B. Atmospheric temperature
C. Middle layer
D. Sun's atmosphere
Answer» B. Atmospheric temperature
24.

Respiration process is a respiratory system of exchanging oxygen and:

A. Carbondioxide
B. Carbohydrates
C. Fats
D. Amino Acid
Answer» B. Carbohydrates
25.

Total weight of living material in a given area is known as:

A. Biome
B. Biomass
C. Biosphere
D. Hydrophere
Answer» C. Biosphere
26.

Above 25% concentration of O₂, there will be:

A. No Forests
B. Forests
C. Mountains
D. Deserts
Answer» B. Forests
27.

The rise in the temperature is not expected the same across the

A. Country
B. Globe
C. City
D. Region
Answer» C. City
28.

Green house gases absorb thermal radiation emitted from the

A. Oceans
B. Earth's Core
C. Earth's Surface
D. Forests
Answer» D. Forests
29.

Who are upsetting the natural balance of gases in the atmospheric system?

A. Anthropogenic activities
B. Natural processes
C. Natural Disasters
D. Pollutants
Answer» B. Natural processes
30.

For how many years the carbon dioxide remains in the atmosphere?

A. up to 200 years
B. up to 400 years
C. up to 600 years
D. up to 500 years
Answer» B. up to 400 years
31.

The largest contributor of GHGs is

A. Methane
B. Carbon dioxide
C. Sox
D. Nox and Sox
Answer» C. Sox
32.

CFCs remain in the atmosphere for how many years?

A. More than 1000 years
B. less than 1000 years
C. 60 years
D. 100 years
Answer» B. less than 1000 years
33.

'Photovoltaic' cell convert solar radiation into:

A. Waves
B. Electricity
C. Radiations
D. Heat
Answer» C. Radiations
34.

In 1999 extreme weather event, which country has the worst drought for 50 years wrecks agriculture?

A. Ethiopia
B. Spain
C. Mexico
D. USA
Answer» C. Mexico
35.

What is purpose of reforestation?

A. Controlling soil erosion
B. planting of forests on lands
C. Working on mining
D. All of above
Answer» C. Working on mining
36.

How much stratospheric ozone layer's concentration extending above earth ?

A. 15 to 45km
B. 17 to 40km
C. 10 to 30km
D. 15 to 30km
Answer» B. 17 to 40km
37.

Clouds are formed by process of

A. Condensation
B. Evaporation
C. Infiltration
D. Water runoff
Answer» B. Evaporation
38.

CFCs can form bubbles in foam, making it a good

A. Conductor
B. Insulator
C. Equipement
D. Device
Answer» C. Equipement
39.

Overgrazing is very common in drier areas of the

A. Sub tropics area
B. Drier tropics area
C. Temperates zone
D. Boreal Forest
Answer» C. Temperates zone
40.

A coal fired power station is an example of

A. Sunlight
B. Tertiary Energy
C. Secondary Energy
D. Primary Enery
Answer» E.
41.

Global warming is entitled as

A. Health Problem
B. Economical Problem
C. Social Problem
D. Environmental Problem
Answer» E.
42.

Which conference focused on the climate change and reduction of carbon dioxide emissions of 5% in 2010?

A. Earth Summit in Rio
B. Montreal Protocol
C. Kyoto Protocol
D. Environmental protocol
Answer» D. Environmental protocol
43.

Precautionary Principle, prevention is better than cure, notion is applied to

A. Soil Erosion
B. potential environmental degradation
C. Acid rain
D. Siltatiom
Answer» C. Acid rain
44.

In stratosphere temperature increases with:

A. Density
B. Width
C. Longitude
D. Height
Answer» E.
45.

WEC is an international body with a broad membership of both energy users and

A. Energy Industry
B. Non Renewable Energy
C. Non Energy Industry
D. Energy Market
Answer» B. Non Renewable Energy
46.

Neutron is a component of most atomic nuclei without having a

A. Electron
B. Electric current
C. Electric charge
D. Proton
Answer» D. Proton
47.

What does "UNEP" and "WMO" establish?

A. IPCC
B. UNCED
C. UNICEF
D. UN
Answer» B. UNCED
48.

In Norway, as per company rule, estimated carbon tax is

A. $US 25 per tonne
B. $US 65 per tonne
C. $US 55 per tonne
D. $US 35 per tonne
Answer» B. $US 65 per tonne
49.

Parameterisation is a climate model, representing processes in terms of an algorithm and

A. Appropriate quantiries
B. Qaulitative
C. Calculatons
D. All of them
Answer» B. Qaulitative
50.

Ozone is formed in atmosphere by the

A. Photochemical reactions
B. Photosynthesis
C. Eutriphication
D. Deforestation
Answer» B. Photosynthesis