You answer would be B because half n half from ur parents
a forms the outer covering of the skin and also lines the body cavity.
Cyanide prevents the production of oxygen
<span>When iron reacts with oxygen, it forms iron oxide, or rust. 4 Fe + 3 O2 2 Fe2O3 If 112 g of iron (Fe) combines with 24 g of oxygen (O2), </span>136g of iron oxide will be produced.