The Biosphere consists of all the living organisms on earth.
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What percentage of South Africa is exposed to unclean water?
90% of South Africa is exposed to unclean water, in the other hand, 10% of South Africa's water is hygienic and world class.
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Answer: central heating system
<span>Sandstone
is a clastic sedimentary rock. A clastic sedimentary rock is composed of silicate
minerals and rock fragments. They are transported by moving fluids such as
sedimentation due to gravity and are deposited in the area where it stays. They
are composed mostly of feldspar, quartz, rock (lithic) fragments, clay minerals
and mica.</span>