Question

QUESTION 6 Match the statements to the appropriate class or type of sedimentary rock The video on Sedimentary Rocks may prove useful in answering this question and others. This rock is formed by the actions of microscopic marine organisms Gypsum is an example of this class of sedimentary rock Weathering is a key process in the formation of this class of sedimentary rocks This rock type could be either formed by chemical or biochemical processes A.coal B.rock salt С.clastic 1).tialkk E. limestone F. biochemical G.chemical -

Answer 1

• The rock is formed by the actions of the microscopic marine organism - Chalk

here the caco₃ (calcium carbonate ) accumulated in the under the deep marine condition

• Gypsum is an example of this class of sedimentary rock - Rock salt

gypsum is deposited in the shallow marine ( lagoons) condition due to evaporation

• weathering is a key process in the formation of this class of sedimentary - Clastic

weathering is the process by which clastic sedimentary rocks form like sandstone

• This rock type could be either formed by chemical or biochemical rock - Limestone

limestone which mainly composed of calcium carbonate and a small amount of dolomite are formed by the chemical or biochemical rock.

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