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ans 1= • we should switch off unnecessary fans or light or other electrical appliances.
• we should use paper or jute bags instead of polythene.
• we should reuse plastic bottles by filling water in them.
Ans2= a - if persistaltic movement do not occur then food will not pushing down the alimentary canal into the stomach.
b- if the platelets are not in the blood then the blood would not be able to clott.
• we should use paper or jute bags instead of polythene.
• we should reuse plastic bottles by filling water in them.
Ans2= a - if persistaltic movement do not occur then food will not pushing down the alimentary canal into the stomach.
b- if the platelets are not in the blood then the blood would not be able to clott.
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