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20 Cards in this Set
- Front
- Back
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what are nonliving parts of an ecosystem called?
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abiotic factors
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How are herbivores and carnivores alike?
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both are consumers
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Wind energy is an indirect form of _______.
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solar energy
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By using seismic waves what have geologists inferred about the Earth?
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its composition and structure
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Scientists think that plate movement is the result of the movement of materials in Earth's _______.
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upper mantle
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What is any change in the volume or shape of earths crust.
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deformation
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What is a huge hole left by the collapse of a volcanic mountain?
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caldera
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a natural source of air pollution is _____.
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wind blowing pollen
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What are instruments used to measure air pressure?
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barometers
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Why do land breezes occur? because land _______.
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cools off faster than water
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About how many tornadoes occur in the US each year?
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800
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What is an abiotic factor that affects plants ability to meet its energy needs?
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sunlight
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What would cause a population to decrease in size?
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the birth rate of the population is lower than the death rate.
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an example of biomass fuel is ______.
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wood
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an example of energy conservation would be to _________.
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recycling aluminum cans
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what is a mineral that is valued for its beautiful color, hardness, and glassy luster?
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gemstone
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what is the point beneath earths surface where rocks break under stress and triggers an earthquake?
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focus
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where is most of the earths freshwater found?
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huge masses of ice near the N and S pole.
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one effect that sunlight has on abiotic parts of a wetland ecosystem is _______.
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it drives the water cycle
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Weather occurs in what layer of our atmosphere?
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troposphere
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