What are rodenticides?
A. That kill fishes
B. That kill insects
C. That kill rats
D. That kill crocos
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When the air is saturated, which of the following statements is not correct?
A. The air temperature equals the wet-bulb temperature
B. The relative humidity is 100 percent
C. The air temperature equals the dew point temperature
D. An increase in temperature will cause condensation to occur
E. The wet bulb temperature equals the dew point temperature
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Meteorology is the study of:
A. Landforms
B. The oceans
C. The atmosphere
D. Outer space
E. Extraterrestrial meteoroids that enter the atmosphere
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The earth's radiative equilibrium temperature is:
A. The temperature at which the earth is absorbing solar radiation and emitting infrared radiation at equal rates
B. The temperature at which the earth is radiating energy at maximum intensity
C. The average temperature the earth must maintain to prevent the oceans from freezing solid
D. The temperature at which rates of evaporation and condensation on the earth are in balance
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Killing of animals disturbs
A. Good for eco system
B. Good for man
C. The balance of nature
D. None
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A biomass pyramid is important because it illustrates
A. How energy flows through a food web
B. The number of species in each tropic level
C. The biomass of all organisms at each tropic level in a system
D. The number of tropic levels in a system
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Low clouds retard surface cooling at night better than clear skies because:
A. The clouds absorb and radiate infrared energy back to earth
B. The water droplets in the clouds reflect infrared energy back to earth
C. The clouds start convection currents between them
D. The clouds are better conductors of heat than is the clear night air
E. The formation of the clouds releases latent heat energy
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The main reason(s) for warm summers in northern middle latitudes is that:
A. The earth is closer to the sun in summer
B. The sun is higher in the sky and we receive more direct solar radiation
C. The days are longer
D. All of the above
E. Only (b) and (c) are correct
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During an equinox:
A. The days and nights are of equal length except at the poles
B. At noon the sun is overhead at the equator
C. The earth is not tilted toward nor away from the sun
D. All of the above
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All the statements are correct regarding ecological succession except
A. It is a random process
B. Species diversity increases as succession proceeds
C. The food chain relationships becomes more complex
D. The role of decomposers becomes more and more important
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Valuable, practical services that help to preserve ecosystem performed by nature are called
A. Ecosystem service
B. Biological control
C. The green house effect
D. Biosphere balancing
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Our seasons are caused by:
A. The changing distance between the earth and the sun
B. The angle at which sunlight reaches the earth
C. The length of the daylight hours
D. All of the above
E. Only (b) and (c) are correct
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If a glass of water were surrounded by saturated air:
A. The level of the water in the glass would slowly decrease
B. The water's temperature would slowly increase
C. The level of the water in the glass would not change
D. The water's temperature would slowly decrease
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In the food relationship where the lion eats the wild beast, and the wild 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
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Two-thirds of the world's known oil reserves are located in
A. Siberia
B. Gulf of mexico and caribbean
C. The middle east
D. Indonesia
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Suppose yesterday morning you noticed ice crystals (frost) on the grass, yet the minimum temperature reported in the newspaper was only 35o F. The most likely reason for this apparent discrepancy is that:
A. Temperature readings are taken in instrument shelters more than 5 feet above the ground
B. The thermometer was in error
C. The newspaper reported the wrong temperature
D. The thermometer was read before the minimum temperature was reached for that day
E. The thermometer was read incorrectly
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Definition of ecosystem is
A. The community of organisms together with the environment in which they live
B. The abiotic component of a habitat
C. The part of the earth and its atmosphere which inhibits living organisms
D. A community of organisms interacting with one another
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Which of the following regarding ecological pyramids is not correct?
A. In most ecosystems, the pyramid of numbers and biomass are up right
B. In tree dominated ecosystem the pyramid of numbers is inverted
C. The pyramid of energy expresses mainly the rate of food production
D. In deep water ecosystem, the pyramid of biomass is upright
E. The total energy flow at successive tropical level always decreases
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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
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Ecological niche of an organism represents
A. The resource it utilizes
B. Functional role in the ecological system
C. The range of conditions that it can tolerate
D. All of these
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