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4)th question answer:
aerobic bacteria is the bacteria which needs oxygen and inaerobic bacterial has no need of oxygen..they can survive without oxygen...
5)th question answer:
the main component which is used in the fire extinguisher is carbon dioxide..because carbon dioxide has the property of reducing or decreasing the level of fire....that means it prevents us from fire accidents...when the fire accident happens,it's better to use the fire extinguisher instead of water because water may or may not reduce the fire...
and fire extinguisher do also contains of sodium bicarbonate (NaHco3)
aerobic bacteria is the bacteria which needs oxygen and inaerobic bacterial has no need of oxygen..they can survive without oxygen...
5)th question answer:
the main component which is used in the fire extinguisher is carbon dioxide..because carbon dioxide has the property of reducing or decreasing the level of fire....that means it prevents us from fire accidents...when the fire accident happens,it's better to use the fire extinguisher instead of water because water may or may not reduce the fire...
and fire extinguisher do also contains of sodium bicarbonate (NaHco3)
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