Suppose it is a winter night and at about 11 p.m., the air cools to the dew-point temperature and a thick radiation fog develops. If the air continues to cool during the night, in 5 hours the dew point temperature will probably:

Decrease as the air becomes moister

Decrease as the air becomes drier

Decrease as the air becomes moister

Increase as the air becomes drier

Increase as the air becomes moister

The aurora is produced by:

Burning oxygen caused by the intense sunlight at high altitude

Reflections of sunlight by polar ice fields

Fast-moving charged particles colliding with air molecules

Burning oxygen caused by the intense sunlight at high altitude

The combination of molecular and atomic oxygen to form ozone

Scattering of sunlight in the upper atmosphere

During the winter solstice in the Northern Hemisphere:

Astronomical winter begins in the Northern Hemisphere

The noon sun is overhead at 23.5o S latitude

At middle latitudes in the Northern Hemisphere, this marks the longest night of the year

The wind direction is:

The direction to which the wind is blowing

The direction from which the wind is blowing

The direction to which the wind is blowing

Always directly from high toward low pressure

Always directly from low toward high pressure

all individuals having same genotype

all individuals having same phenotype

all individuals having same genotype

all individual with different phenotype

all individuals with different genotype

The atmosphere near the earth's surface is "heated from below." Which of the following does not significantly contribute to this heating?

Conduction of heat upward from a hot surface

Absorption of infrared energy that has been radiated from the surface

Heat energy from the earth's interior

A change of one degree on the Celsius scale is ____ a change of one degree on the Fahrenheit scale.

Is in the opposite direction of

What is lentic habitat ?

Standing or still water habitat

The lag in daily temperature refers to the time lag between the:

Time of minimum temperature and the time of maximum solar radiation

Time of maximum solar radiation and the time of maximum temperature

Time of minimum temperature and the time of maximum solar radiation

Minimum and maximum temperature for a day

Minimum and maximum solar energy received at the surface for a given day

Suppose last night was clear and calm. Tonight low clouds will be present. From this you would conclude that tonight's minimum temperature will be:

Lower than last night's minimum temperature

Higher than last night's minimum temperature

Lower than last night's minimum temperature

The same as last night's minimum temperature

"A good absorber of a given wavelength of radiation is also a good emitter of that wavelength." This is a statement of:

The First Law of Thermodynamics

Which of the following statement is incorrect regarding ecological pyramids

The pyramid of biomass is inverted in aquatic ecosystem

The pyramid of energy is inverted in ocean ecosystem

The pyramid of biomass is inverted in aquatic ecosystem

The pyramid of numbers is upright in grass land ecosystem

The pyramid of biomass is upright in grass land ecosystem

In the food relationship where the lion eats the wilde beest, and the wilde beast eats plants

The lion is the prey and the wilde beast is the predator

The lion is the predator and the wilde beast is the prey

The lion is the primary consumer and the wilde beast is the secondary consumer

The lion is the secondary consumer and the wilde beast is the primary consumer

The wind-chill factor:

Indicates the temperature at which water freezes on exposed skin

Relates body heat loss with wind to an equivalent temperature with no wind

Indicates the temperature at which water freezes on exposed skin

Takes into account humidity and air temperature in expressing the current air temperature

Tells farmers when to protect crops from a freeze

Determines how low the air temperature will be on any given day

Bell-shaped polygonal pyramid indicates

high percentage of young individuals

low percentage of young individuals

moderate percentage of young individuals

high percentage of young individuals

low percentage of old individuals

Freshwater protozoans react to a/an __________ environment by removing water through

isotonic, a contractile vacuole

hypertonic, a contractile vacuole

hypotonic, a contractile vacuole

1049 + Mcqs in Environmental Science in General Knowledge Page 18 McqOptions

851.	Suppose it is a winter night and at about 11 p.m., the air cools to the dew-point temperature and a thick radiation fog develops. If the air continues to cool during the night, in 5 hours the dew point temperature will probably:
A.	Decrease as the air becomes drier
B.	Decrease as the air becomes moister
C.	Increase as the air becomes drier
D.	Increase as the air becomes moister
Answer» B. Decrease as the air becomes moister

Discussion

852.	The aurora is produced by:
A.	Reflections of sunlight by polar ice fields
B.	Fast-moving charged particles colliding with air molecules
C.	Burning oxygen caused by the intense sunlight at high altitude
D.	The combination of molecular and atomic oxygen to form ozone
E.	Scattering of sunlight in the upper atmosphere
Answer» C. Burning oxygen caused by the intense sunlight at high altitude

Discussion

853.	Which plants die after flowering?
A.	Lotus
B.	Bamboo
C.	Chrysanthemum
D.	Butea
Answer» C. Chrysanthemum

Discussion

854.	A great deal of indoor air pollution comes from
A.	sludge
B.	carbon monoxide
C.	cooking
D.	carpets and furniture
Answer» E.

Discussion

855.	The lowest temperature that can be attained by evaporating water into the air is known as the:
A.	Heat index
B.	Minimum temperature
C.	Wet-bulb temperature
D.	Frost point
E.	Wind chill temperature
Answer» D. Frost point

Discussion

856.	Of all of the energy production in the United States, what percentage is lost in distribution and inefficient use?
A.	10
B.	25
C.	40
D.	50
Answer» D. 50

Discussion

857.	Wild life is continuously decreasing. What is the main reason of this?
A.	Predation
B.	Cutting down of forest
C.	Destruction of habitat
D.	Hunting
Answer» D. Hunting

Discussion

858.	Centre of Modern nuclear technology in India
A.	CRAS
B.	SARC
C.	BARC
D.	None of these
Answer» D. None of these

Discussion

859.	During the winter solstice in the Northern Hemisphere:
A.	Astronomical winter begins in the Northern Hemisphere
B.	The noon sun is overhead at 23.5o S latitude
C.	At middle latitudes in the Northern Hemisphere, this marks the longest night of the year
D.	All of the above
Answer» E.

Discussion

860.	Name the endangered animal which is protected in Rajamalai National Park
A.	Chital
B.	Black buck
C.	Nilgiri Tahr
D.	None
Answer» D. None

Discussion

861.	In an average year, more people die from this than from any other natural disaster.
A.	Lightning
B.	Earthquakes
C.	Tornadoes
D.	Flash floods and flooding
E.	Droughts
Answer» E. Droughts

Discussion

862.	Rising air cools by this process:
A.	Expansion
B.	Evaporation
C.	Compression
D.	Condensation
Answer» B. Evaporation

Discussion

863.	The thickness of ozone layer is measured in
A.	Mm
B.	Du
C.	Nm
D.	Hg
Answer» C. Nm

Discussion

864.	In a volume of air near the earth's surface, ____ occupies 78 percent and ____ nearly 21 percent.
A.	Nitrogen, oxygen
B.	Hydrogen, oxygen
C.	Oxygen, hydrogen
D.	Nitrogen, water vapor
E.	Hydrogen, helium
Answer» B. Hydrogen, oxygen

Discussion

865.	The gas responsible for the greenhouse effect on Venus is:
A.	Carbon dioxide (CO2)
B.	Oxygen (O2)
C.	Ozone (O3)
D.	Nitrogen (N2)
E.	Water vapor (H2O)
Answer» B. Oxygen (O2)

Discussion

866.	The wind direction is:
A.	The direction from which the wind is blowing
B.	The direction to which the wind is blowing
C.	Always directly from high toward low pressure
D.	Always directly from low toward high pressure
Answer» B. The direction to which the wind is blowing

Discussion

867.	A term biotype means
A.	all individuals having same phenotype
B.	all individuals having same genotype
C.	all individual with different phenotype
D.	all individuals with different genotype
Answer» B. all individuals having same genotype

Discussion

868.	The atmosphere near the earth's surface is "heated from below." Which of the following does not significantly contribute to this heating?
A.	Conduction of heat upward from a hot surface
B.	Convection from a hot surface
C.	Absorption of infrared energy that has been radiated from the surface
D.	Heat energy from the earth's interior
Answer» E.

Discussion

869.	A change of one degree on the Celsius scale is ____ a change of one degree on the Fahrenheit scale.
A.	Equal to
B.	Larger than
C.	Smaller than
D.	Is in the opposite direction of
Answer» C. Smaller than

Discussion

870.	The crucial species that determine the ability of large number of other species is termed as _________ species.
A.	Important
B.	Crucial
C.	Significant
D.	Keystone
Answer» E.

Discussion

871.	World Ozone day is
A.	March 16
B.	June 5
C.	September 16
D.	November 16
Answer» D. November 16

Discussion

872.	A Hawk that eats a frog is a
A.	Producer
B.	Primary Consumer
C.	Secondary Consumer
D.	Tertiary Consumer
Answer» E.

Discussion

873.	At which temperature would the earth be radiating energy at the greatest rate or intensity?
A.	-5o F
B.	-40o F
C.	60o F
D.	32o F
E.	105o F
Answer» F.

Discussion

874.	The Indian Parliament passed the Biodiversity Bill in the year_________
A.	2000
B.	2005
C.	2002
D.	2007
Answer» D. 2007

Discussion

875.	Which of the following weather elements always decreases as we climb upward in the atmosphere?
A.	Wind
B.	Temperature
C.	Pressure
D.	Moisture
E.	All of the above
Answer» D. Moisture

Discussion

876.	The historical monument that is affected by acid rain is
A.	Taj Mahal
B.	Pyramid of Egypt
C.	Pisa Tower
D.	Golden Temple
Answer» B. Pyramid of Egypt

Discussion

877.	Plants that grows in saline water lodged habitat are called
A.	xerophytes
B.	halophytes
C.	mangroves
D.	mesophytes
Answer» D. mesophytes

Discussion

878.	The Chipko movement is started by
A.	Engler
B.	Sunderlal Bahuguna
C.	Medha Padkar
D.	None of these
Answer» C. Medha Padkar

Discussion

879.	What is lentic habitat ?
A.	Running water habitat
B.	Standing or still water habitat
C.	Marine habitat
D.	None
Answer» C. Marine habitat

Discussion

880.	Plants adapted to open, sunny habitats are
A.	Sciophytes
B.	Heliophytes
C.	Mesophytes
D.	Epiphytes
Answer» C. Mesophytes

Discussion

881.	The lag in daily temperature refers to the time lag between the:
A.	Time of maximum solar radiation and the time of maximum temperature
B.	Time of minimum temperature and the time of maximum solar radiation
C.	Minimum and maximum temperature for a day
D.	Minimum and maximum solar energy received at the surface for a given day
E.	Sunrise and sunset
Answer» B. Time of minimum temperature and the time of maximum solar radiation

Discussion

882.	Which of the following is least likely to contain an oil trap?
A.	an anticline
B.	fault
C.	natural stratigraphy
D.	syncline
Answer» E.

Discussion

883.	The most harmful of ultraviolet radiations are
A.	UV-C,
B.	UV-B,
C.	UV-A,
D.	All the above.
Answer» B. UV-B,

Discussion

884.	Complex interlinked food chains are called
A.	Food Web
B.	Food net work
C.	Trophiclevels
D.	Food pyramid
Answer» B. Food net work

Discussion

885.	Suppose last night was clear and calm. Tonight low clouds will be present. From this you would conclude that tonight's minimum temperature will be:
A.	Higher than last night's minimum temperature
B.	Lower than last night's minimum temperature
C.	The same as last night's minimum temperature
D.	Above freezing
Answer» B. Lower than last night's minimum temperature

Discussion

886.	The atmospheric layer in which we live is called the:
A.	Troposphere
B.	Stratosphere
C.	Thermosphere
D.	Ionosphere
E.	Exosphere
Answer» B. Stratosphere

Discussion

887.	The area to which a species is biologically adapted to live is known as ________
A.	Niche
B.	Habitat
C.	Succession
D.	Community
Answer» C. Succession

Discussion

888.	Charged particles from the sun that travel through space at high speeds are called:
A.	Radiation
B.	The aurora
C.	Solar wind
D.	Solar flares
Answer» D. Solar flares

Discussion

889.	"A good absorber of a given wavelength of radiation is also a good emitter of that wavelength." This is a statement of:
A.	Stefan-Boltzmann's law
B.	Wien's Law
C.	Kirchoff's Law
D.	The First Law of Thermodynamics
E.	The Law of Relativity
Answer» D. The First Law of Thermodynamics

Discussion

890.	Which of the following statement is incorrect regarding ecological pyramids
A.	The pyramid of energy is inverted in ocean ecosystem
B.	The pyramid of biomass is inverted in aquatic ecosystem
C.	The pyramid of numbers is upright in grass land ecosystem
D.	The pyramid of biomass is upright in grass land ecosystem
Answer» B. The pyramid of biomass is inverted in aquatic ecosystem

Discussion

891.	In the food relationship where the lion eats the wilde beest, and the wilde beast eats plants
A.	The lion is the prey and the wilde beast is the predator
B.	The lion is the predator and the wilde beast is the prey
C.	The lion is the primary consumer and the wilde beast is the secondary consumer
D.	The lion is the secondary consumer and the wilde beast is the primary consumer
Answer» E.

Discussion

892.	Sedimentation is a
A.	Primary water treatment
B.	Secondary water treatment
C.	Tertiary water treatment
D.	Final process
Answer» B. Secondary water treatment

Discussion

893.	The wind-chill factor:
A.	Relates body heat loss with wind to an equivalent temperature with no wind
B.	Indicates the temperature at which water freezes on exposed skin
C.	Takes into account humidity and air temperature in expressing the current air temperature
D.	Tells farmers when to protect crops from a freeze
E.	Determines how low the air temperature will be on any given day
Answer» B. Indicates the temperature at which water freezes on exposed skin

Discussion

894.	Sunlight passes through a thicker portion of the atmosphere at
A.	Sunrise
B.	Noon
C.	Sunset
D.	Night
E.	Both a and c
Answer» F.

Discussion

895.	Incineration of Municipal waste involves
A.	Oxidation
B.	Deduction
C.	Redox action
D.	Disintegration
Answer» B. Deduction

Discussion

896.	Suppose saturated polar air has an air temperature and dew point of -10o C, and unsaturated desert air has an air temperature of 35o C and a dew point of 10o C. The desert air contains ______ water vapor and has a ________ relative humidity than the polar air.
A.	More, lower
B.	More, higher
C.	Less, lower
D.	Less, higher
Answer» B. More, higher

Discussion

897.	Which of the following is correctly matched?
A.	Butterfly - Camouflage
B.	Garden lizard -Mimicry
C.	House lizard -Autotomy
D.	None of these
Answer» D. None of these

Discussion

898.	_________ is essentially stored solar energy that can be converted in to electricity, fuel and heat.
A.	Biomass
B.	Fossil
C.	Heat
D.	Coal
Answer» B. Fossil

Discussion

899.	Bell-shaped polygonal pyramid indicates
A.	low percentage of young individuals
B.	moderate percentage of young individuals
C.	high percentage of young individuals
D.	low percentage of old individuals
Answer» C. high percentage of young individuals

Discussion

900.	Freshwater protozoans react to a/an __________ environment by removing water through
A.	hypotonic, turgor pressure
B.	isotonic, a contractile vacuole
C.	hypertonic, a contractile vacuole
D.	hypotonic, a contractile vacuole
Answer» E.

Discussion

Explore topic-wise MCQs in General Knowledge.

Suppose it is a winter night and at about 11 p.m., the air cools to the dew-point temperature and a thick radiation fog develops. If the air continues to cool during the night, in 5 hours the dew point temperature will probably:

The aurora is produced by:

Which plants die after flowering?

A great deal of indoor air pollution comes from

The lowest temperature that can be attained by evaporating water into the air is known as the:

Of all of the energy production in the United States, what percentage is lost in distribution and inefficient use?

Wild life is continuously decreasing. What is the main reason of this?

Centre of Modern nuclear technology in India

During the winter solstice in the Northern Hemisphere:

Name the endangered animal which is protected in Rajamalai National Park

In an average year, more people die from this than from any other natural disaster.

Rising air cools by this process:

The thickness of ozone layer is measured in

In a volume of air near the earth's surface, ____ occupies 78 percent and ____ nearly 21 percent.

The gas responsible for the greenhouse effect on Venus is:

The wind direction is:

A term biotype means

The atmosphere near the earth's surface is "heated from below." Which of the following does not significantly contribute to this heating?

A change of one degree on the Celsius scale is ____ a change of one degree on the Fahrenheit scale.

The crucial species that determine the ability of large number of other species is termed as _________ species.

World Ozone day is

A Hawk that eats a frog is a

At which temperature would the earth be radiating energy at the greatest rate or intensity?

The Indian Parliament passed the Biodiversity Bill in the year_________

Which of the following weather elements always decreases as we climb upward in the atmosphere?

The historical monument that is affected by acid rain is

Plants that grows in saline water lodged habitat are called

The Chipko movement is started by

What is lentic habitat ?

Plants adapted to open, sunny habitats are

The lag in daily temperature refers to the time lag between the:

Which of the following is least likely to contain an oil trap?

The most harmful of ultraviolet radiations are

Complex interlinked food chains are called

Suppose last night was clear and calm. Tonight low clouds will be present. From this you would conclude that tonight's minimum temperature will be:

The atmospheric layer in which we live is called the:

The area to which a species is biologically adapted to live is known as ________

Charged particles from the sun that travel through space at high speeds are called:

"A good absorber of a given wavelength of radiation is also a good emitter of that wavelength." This is a statement of:

Which of the following statement is incorrect regarding ecological pyramids

In the food relationship where the lion eats the wilde beest, and the wilde beast eats plants

Sedimentation is a

The wind-chill factor:

Sunlight passes through a thicker portion of the atmosphere at

Incineration of Municipal waste involves

Suppose saturated polar air has an air temperature and dew point of -10o C, and unsaturated desert air has an air temperature of 35o C and a dew point of 10o C. The desert air contains ______ water vapor and has a ________ relative humidity than the polar air.

Which of the following is correctly matched?

_________ is essentially stored solar energy that can be converted in to electricity, fuel and heat.

Bell-shaped polygonal pyramid indicates

Freshwater protozoans react to a/an __________ environment by removing water through

In a volume of air near the earth's surface, occupies 78 percent and nearly 21 percent.

Suppose saturated polar air has an air temperature and dew point of -10o C, and unsaturated desert air has an air temperature of 35o C and a dew point of 10o C. The desert air contains water vapor and has a __ relative humidity than the polar air.