A mineral has 5 characteristics:-
Naturally occurring, Solid, Inorganic, Crystalline structure, and the same chemical composition.
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B. is the answer.
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Homo ergaster may have been the first human species to leave Africa and fossil remains show this species had expanded its range into southern Eurasia by 1.75 million years ago. Their descendents, Homo erectus, then spread eastward and were established in South East Asia by at least 1.6 million years ago.Oct 30, 2015
A large portion of our energy originates from consuming fossil fuels , consuming non-renewable energy sources dirties the air by putting all ash of harmful gases in it and also ozone harming substances which influence the atmosphere.
Conserving energy can anticipate things like synthetic compounds going into the air from control plants, or on the off chance that we drive less then we annihilate the air less in light of less CO2 outflows. Conserving energy additionally forestalls things like oil slicks into the sea.
Conserving energy can help with diminishing air, water, and land contamination in light of the diverse options we have for energy. We have sun powered power energy that is a sustainable source. Sun based power vitality doesn't contaminate the air that we inhale or discharge any ozone harming substances while creating power. You likewise have tidal energy that believers waves into clean, contamination free power. This shields the water from being dirtied.
