Mr. Olson 6th Grade Chap 1 E
Help!
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| Animal-like plankton are called __________. | zooplankton
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| In ocean water, oxygen, carbon dioxide, and nitrogen are present as ______________. | gases
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| The fresh water in rivers is less ___________ than ocean water. | dense
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| In ocean water, sodium chloride, potassium chloride, and magnesium chloride are present as dissolved _____________. | salts
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| What is a self-contained underwater breathing apparatus called? | scuba
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| The plants and animals that live on the ocean floor and do not swim are called ____________. | benthos
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| Water temperature _____________ as ocean depth increases. | decreases
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| The organisms that live on or near the ocean's surfaace and drift with currents are called ________________. | plankton
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| What keeps water in the deepest regions of the ocean from freezing? | pressure
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| The total amount of dissolved salts in ocean water is called _____________. | salinity
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| Plantlike plankton are called ____________. | phytoplankton
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| Sand particles, bits of shells, and decaying organisms that do not dissolve in ocean water form _____________. | sediment
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| The total amount of dissolved salts in ocean water is called _________________. | salinity
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| Ocean water is a mixture of water and ______________. | salts
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| Because phytoplankton need sunlight for ___________________, they must live near the surface of the ocean. | photosynthesis
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