The earth's magnetic field is generated by which layer? select one: a. outer core b. mesosphere c. asthenosphere e. outer core and asthenosphere together which layer(s) from the choices below are defined by physical properties and could be considered a brittle solid? select one: a. asthenosphere b. mesosphere c. asthenosphere & mesosphere d. lithosphere e. mantle
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Astudent conducts an experiment to see how music affects plant growth. the student obtains four identical plants. each one is potted in the same type of soil and receives the same amount of sunlight and water each day. plant a listens to classical music for three hours each day. plant b listens to rock music for three hours each day. plant c listens to country music for three hours each day. plant d does not listen to any music at all. 2. based on the experiment in the scenario, which visual aid would be most in showing the change in the plants' heights over time? a. a pie chart b. a line graph c. a timeline d. a bar graph
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What evidence supports geological processes changing the surface of the earth? cutting down forests creates a decrease of habitats. tectonic plates uplift the rocky crust of earth to form mountains. competition in ecosystems creates a decrease in diversity. pollution runoff contaminates a lake.
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The earth's magnetic field is generated by which layer? select one: a. outer core b. mesosphere c....
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