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1 |
Which of the following keeps the planets in our solar system in orbit around the Sun? |
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| A. | atmospheric pressure | | B. | gravitational force | | C. | electromagnetic energy | | D. | thermal energy |
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2 |
Which of the following groups of organisms uses sunlight to convert carbon dioxide and water into sugar and oxygen? |
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| A. | carnivores | | B. | decomposers | | C. | herbivores | | D. | producers |
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4 |
A manufacturer wants to produce a container for food storage that does not break easily and is airtight, inexpensive, and microwave-safe. Which of the following is the best material to use to make the container? |
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| A. | glass | | B. | metal | | C. | paper | | D. | plastic |
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5 |
Heat from deep in Earth's interior is transferred to its crust by which of the following? |
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| A. | conduction in the ocean | | B. | convection in the mantle | | C. | radiation from the solid core | | D. | evaporation at mid-ocean ridges |
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