Question

tell me the answer of this questions ​

Answer 1

Answer:

1.A mixture of oil and water retain the properties of its constituents because it's a . It is a heterogeneous mixture because the mixture of oil and water can be separated by using separating funnel.

2.Magnetic separation is used where one substance should have magnetic properties like attraction and repulsion Then we can say that Copper and sulphur don't have magnetic properties so we can't separate them by using method of magnetic separation.

3.When large volumes of sand or gravel are used in land reclamation, the runoff from placing the material may contain high levels of suspended sediment. The potential effects of this runoff are very similar to the impacts from dredging itself

Explanation:

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