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Answer:
d. 25%
Explanation:
The porosity of the sediment is 25% which we get by using the formula of porosity i. e. Volume of Voids is divided by Total Volume and then multiply by 100. So 50 is divided by 200 and then multiply by 100 we get 25%. Porosity is defined as the ratio of the volume of the pores to the volume of the rock. Porosity is expressed in percentage. So through calculation we get 25% porosity of the sediment.