None of the above. Marble is a metamorphic rock.
Shale is clastic
Chalk is an organic sedimentary rock.
Chalk is a biochemical sedimentary rock.
Limestone is chemical; though in certain cases, limestone may be organic, when it is composed of the dead remains of organisms (fossils). That's called fossiliferous limestone, or fossil-rich limestone, but regular limestone is just chemical.
Clastic rocks are sedimentary rocks consisting of bits and pieces of other rocks created by physical/mechanical weathering. Non-clastic are also sedimentary rocks; however are absent bits and pieces of other rocks and are formed through chemical processes (e.g. hydrolysis, evaporation, precipitation, oxidation) or form out of organic material (e.g. coal, chalk).
The basic division of sedimentary rocks is into clastic and chemical rocks. Clastic rocks are formed when grains form a sediment and are then cemented together, as happens with sandstone or shale. Chemical rocks form when solid precipitates out of solution, for instance when calcium carbonate is formed from sea water to give chalk.
Chalk is a form of limestone, a sedimentary rock.
It is clastic
Chalk is a biochemical sedimentary rock.
Chemical: Minerals were dissolved in water to form it. Organic: Formed from the remains of living things. Clastic: Formed form bits of other rocks.
Clastic and nonclastic
Limestone is chemical; though in certain cases, limestone may be organic, when it is composed of the dead remains of organisms (fossils). That's called fossiliferous limestone, or fossil-rich limestone, but regular limestone is just chemical.
Clastic, chemical, and Organic
Clastic rocks are sedimentary rocks consisting of bits and pieces of other rocks created by physical/mechanical weathering. Non-clastic are also sedimentary rocks; however are absent bits and pieces of other rocks and are formed through chemical processes (e.g. hydrolysis, evaporation, precipitation, oxidation) or form out of organic material (e.g. coal, chalk).
Clastic (or detrital): Sedimentary rock formed from particles of other sedimentary, metamorphic, or igneous rock which has been weathered, eroded, deposited, compacted and cemented. Examples of clastic sedimentary rock include shale, sandstone, mudstone, and conglomerate.Chemical: Chemical sedimentary rocks have intergrown mineral crystals that are precipitated from saturated aqueous solutions and chemical residues. The precipitated minerals that are commonly included are halite, quartz, limonite, calcite, chert, dolomite, hematite, and gypsum; consequently, common chemical rocks are limestone, chert, and rock gypsum.Organic:Organic sedimentary rock is rock that is derived or generated from sediments that are produced by organisms. Coal and chalk are examples of organic sedimentary rock.
The basic division of sedimentary rocks is into clastic and chemical rocks. Clastic rocks are formed when grains form a sediment and are then cemented together, as happens with sandstone or shale. Chemical rocks form when solid precipitates out of solution, for instance when calcium carbonate is formed from sea water to give chalk.
Limestone and chalk are formed from organic material Limestone - Clastic shell fragments Chalk - Microscopic shells of calicum carbonate plates formed by single celled algaes Chert - Microscopic siliceous organisms, recrystallized silica
Chalk is a form of limestone, a sedimentary rock.
Make a list of the properties of each describing each property. In this way the similarities and differences will become more transparent. Asking others to complete your assignment or homework is self defeating.