Biochemical sedimentary rocks are sedimentary rocks created by the buildup of organic carbon (dead plant debris) in low-oxygen conditions (such as swamps).
When organisms utilize elements dissolved in air or water to develop their tissue, biochemical sedimentary rocks form. The calcareous skeletons of creatures such as corals, mollusks, and foraminifera are used to make most varieties of limestone.
Shells and bodies of submerged creatures are used to build biochemical sedimentary rocks. Chemical components from the water are extracted by living creatures and used to form shells and other body parts. Aragonite, a mineral related to and usually replaced by calcite, and silica are among the constituents.
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Answer:
water rich countries have access to clean and safe water also a surplus of water. however water poor country’s are countries that lack or have limited clean water access. for the countires that are considered Water Poor, they do not have the wasteful luxury, in fact 88% of fatal cases are due to no water access. some countries that are water rich are Brazil, Russia, United States, Canada. some water poor countries are Bahrain, Jordan, Kuwait, Libyan Arab Jamahirya.
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