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10 poin
which of the following is a product in the reaction: iron +
copper (ii) sulfate – iron (ii) sulfate + copper? *
Answers: 2
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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
Answers: 2
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Why is planting a wide variety of plant species better than planting only one type? a) diversity is best for the environment. b) a wide variety would mean less wear and tear on the soil. c) it would lead to desertification prevention. d) combining biological and chemical controls are the conditions of a healthy farm.
Answers: 3
10 poin
which of the following is a product in the reaction: iron +
copper (ii) sulfate...
which of the following is a product in the reaction: iron +
copper (ii) sulfate...
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