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Quiz 11
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Q.1
Minamata disease was caused by pollution of water by
Mercury
Lead
Tin
Methyl iso cyanate
Q.2
What is "temporary threshold shift"?
Hearing loss due to excessive noise
Noise that is untolerable
Tolerable noise
inaudible noise
Q.3
World wildlife week is observed during
First week of October
Last week of October
Third week of October
First week of September
Q.4
The concept that 'population tends to increase geometrically while food supply increases arithmetically' was put forward by
Adam Smith
Charles Darwin
Thomas Malthus
Stuart Mill
Q.5
The lower limit of water availability in soil is known as
Field capacity
Hypolimnion
Thermocline
Wilting point
Q.6
The top layer of the lake is called as
Thermocline
Epilimnion
Thermonion
Hypolimnion
Q.7
The most harmful of ultraviolet radiation is
UV-C,
UV-B,
UV-A,
All the above.
Q.8
When the air is saturated, which of the following statements is not correct?
The air temperature equals the wet-bulb temperature
The relative humidity is 100 percent
The air temperature equals the dew point temperature
An increase in temperature will cause condensation to occur
The wet bulb temperature equals the dew point temperature
Q.9
Many freshwater animals cannot live for long in sea water and vice versa mainly because of the
Change in N levels
Change in the levels of thermal tolerance
Variations in light intensity
Osmotic problems
Spectral quality of solar radiation
Q.10
Which of the following enhances soil fertility?
Crop rotation
Improved methods of agriculture
Using new seed varieties
Irrigation
Q.11
What is UNCED?
United Nations Conference on Education,
United Nations Conference on Environmental Day
United Nations Conference on Environment and Development
None of these
Q.12
_________ causes loss of water because of seepage of water into the soil.
Evaporation
Percolation
Transpiration
Infiltration
Q.13
Frost typically forms on the inside of a windowpane (rather than the outside) because:
The inside of the pane is colder than the outside
There is more water vapor touching the inside of the pane
There is less water vapor touching the inside of the pane
None of the above
Q.14
Ecology is
The science that studies the evolution of life,
Integrates both social and natural sciences to help us understand how the earth works,
The study of the relationships between organisms and their environment
The study of the environment in the absence of humans
Q.15
Which of the following is false?
Quantity of biomass in a trophic level at a particular period is called as standing crop
The energy content in a trophic level is determined is determined by considering a few individuals of a species in that trophic level.
The succession that occurs in newly cooled lava is called primary succession
Rate of succession is faster in secondary succession
Phytoplanktons are the pioneers in the aquatic ecosystem
Q.16
_________ layer is very near to earth
Stratosphere
Mesosphere
Troposphere
Thermosphere
Q.17
In an average year, more people die from this than from any other natural disaster.
Lightning
Earthquakes
Tornadoes
Flash floods and flooding
Droughts
Q.18
About ____ of the meteorologists and atmospheric scientists in the United States work in the field of weather forecasting.
One-tenth
One-half
Three-quarters
Nine-tenths
Q.19
The atmospheric layer in which we live is called the:
Troposphere
Stratosphere
Thermosphere
Ionosphere
Exosphere
Q.20
The hottest atmospheric layer is the:
Stratosphere
Mesosphere
Thermosphere
Troposphere
Q.21
Suppose yesterday morning you noticed ice crystals (frost) on the grass, yet the minimum temperature reported in the newspaper was only 35
o
F. The most likely reason for this apparent discrepancy is that:
Temperature readings are taken in instrument shelters more than 5 feet above the ground
The thermometer was in error
The newspaper reported the wrong temperature
The thermometer was read before the minimum temperature was reached for that day
The thermometer was read incorrectly
Q.22
Definition of ecosystem is
The community of organisms together with the environment in which they live
The abiotic component of a habitat
The part of the earth and its atmosphere which inhibits living organisms
A community of organisms interacting with one another
Q.23
Which of the following statements is not correct?
The length of human hair changes as the relative humidity changes.
During the winter, low relative humidity can irritate the mucus membranes in the nose and throat.
The relative humidity is a measure of the air's actual water vapor content.
A change in the air temperature can change the relative humidity.
Q.24
Harnessing of nuclear energy often causes ________ pollution
Air
Water
Thermal
Noise
Q.25
The heating of earth's atmosphere due to trapped radiation is known as
Global warming
Glass-House effect
Thermal effect
Green House effect
Q.26
If the amount of energy lost by the earth to space each year were not approximately equal to that received:
The atmosphere's average temperature would change
The length of the year would change
The sun's output would change
The mass of the atmosphere would change
Q.27
The sun emits its greatest intensity of radiation in:
The visible portion of the spectrum
The infrared portion of the spectrum
The ultraviolet portion of the spectrum
The x-ray portion of the spectrum
Q.28
Valuable, practical services that help to preserve ecosystem performed by nature are called
Ecosystem service
Biological control
The green house effect
Biosphere balancing
Q.29
Our seasons are caused by:
The changing distance between the earth and the sun
The angle at which sunlight reaches the earth
The length of the daylight hours
All of the above
Only (b) and (c) are correct
Q.30
A biomass pyramid is important because it illustrates
How energy flows through a food web
The number of species in each tropic level
The biomass of all organisms at each tropic level in a system
The number of tropic levels in a system
Q.31
Low clouds retard surface cooling at night better than clear skies because:
The clouds absorb and radiate infrared energy back to earth
The water droplets in the clouds reflect infrared energy back to earth
The clouds start convection currents between them
The clouds are better conductors of heat than is the clear night air
The formation of the clouds releases latent heat energy
Q.32
Approximately, 50% of total world species are present on
Tropical rain forest
Temperate rain forest
Temperate deciduous forest
Coral reefs
Q.33
Which one of the following ecosystem type has the highest annual net primary productivity?
Tropical deciduous forest
Tropical rain forest
Temperate deciduous forest
Temperate evergreen forest
Q.34
Which of the following regarding ecological pyramids is not correct?
In most ecosystems, the pyramid of numbers and biomass are up right
In tree dominated ecosystem the pyramid of numbers is inverted
The pyramid of energy expresses mainly the rate of food production
In deep water ecosystem, the pyramid of biomass is upright
The total energy flow at successive tropical level always decreases
Q.35
Which of the following statement is incorrect regarding ecological pyramids
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
Q.36
Without the atmospheric greenhouse effect, the average surface temperature would be:
Higher than at present
Lower than at present
The same as it is now
Much more variable than it is now
Q.37
How much radiant energy will an object emit if its temperature is at absolute zero?
The maximum theoretical amount
None
The same as it would at any other temperature
Depends on the chemical composition of the object
Q.38
Aquatic life is damaged by
Thermal pollution
Sound pollution
Air Pollution
All of these
Q.39
Lines connecting points of equal temperature are called:
Isobars
Isotherms
Thermals
Thermographs
Q.40
The main reason why vegetables take longer to cook in boiling water at high altitudes is because:
Water boils at a higher temperature with higher altitude
The temperature of the boiling water decreases with increasing altitude
There is less oxygen in the air at high altitude
Saturation vapor pressure decreases with increasing altitude
Q.41
If a glass of water were surrounded by saturated air:
The level of the water in the glass would slowly decrease
The water's temperature would slowly increase
The level of the water in the glass would not change
The water's temperature would slowly decrease
Q.42
In the food relationship where the lion eats the wild beast, and the wild 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
Q.43
The main reason(s) for warm summers in northern middle latitudes is that:
The earth is closer to the sun in summer
The sun is higher in the sky and we receive more direct solar radiation
The days are longer
All of the above
Only (b) and (c) are correct
Q.44
During an equinox:
The days and nights are of equal length except at the poles
At noon the sun is overhead at the equator
The earth is not tilted toward nor away from the sun
All of the above
Q.45
Meteorology is the study of:
Landforms
The oceans
The atmosphere
Outer space
Extraterrestrial meteoroids that enter the atmosphere
Q.46
The amount of force exerted over an area of surface is called:
Density
Weight
Temperature
Pressure
Q.47
Sedimentation is a
Primary water treatment
Secondary water treatment
Tertiary water treatment
Final process
Q.48
Ecological niche of an organism represents
The resource it utilizes
Functional role in the ecological system
The range of conditions that it can tolerate
All of these
Q.49
Concept of ecological pyramids was proposed by
Odum
Clements
Tansley
Charles Elton
Q.50
Oil derived from coal, oil shales or tar sands is called
natural gas
biomass
syncrude
none of the above
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