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Biology, 21.06.2019 22:30
Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials
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Biology, 21.06.2019 23:00
What are tissues? a groups of tissues that work together b basic units of structure and function c groups of cells that perform the same function d multiple organs that perform a major function
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Biology, 22.06.2019 09:00
Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land
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Mathematics, 30.09.2019 17:00
Mathematics, 30.09.2019 17:00
History, 30.09.2019 17:00
Social Studies, 30.09.2019 17:00
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History, 30.09.2019 17:00
History, 30.09.2019 17:00
Biology, 30.09.2019 17:00
Mathematics, 30.09.2019 17:00
Mathematics, 30.09.2019 17:00
Mathematics, 30.09.2019 17:00
Biology, 30.09.2019 17:00