Answer :
Final answer:
Three examples of biochemical sedimentary rocks are Banded iron formation, Fossiliferous limestone, and Chalk. These rocks are formed from the accumulated remains of once-living organisms or their products.
Explanation:
Biochemical sedimentary rocks are those formed from the accumulated remains of once-living organisms or their activities. Looking at the options given, the three that are biochemical sedimentary rocks are Banded iron formation, Fossiliferous limestone, and Chalk.
A Banded iron formation is a type of biochemical sedimentary rock that's typically made from repeated thin layers of iron oxides and chert. It is the deposited materials from ancient seas, typically from cyanobacteria-producing oxygen that reacts with iron in the water.
Fossiliferous limestone is another example. It is composed mainly of calcium carbonate in the form of the mineral calcite and contains a high percentage of calcium carbonate fossil shells and shell fragments.
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