Air is made of gaseous elements and compounds that interact but are not bound to each other. so air can be considered a

Mixture is a combination or aggregate of two or more components. A mixture can be homogenous or hetrogenous depending upon the components present in it. A homogenous mixture is the one which is made of only one type of component. A hetrogenous mixture is the one which is made up of two or more types of components. An air is a mixture of gaseous elements and compounds that interact but are not bound to each other. Therefore, air is a hetrogenous mixture of gases.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

it enhances antibody production by t cells of the adaptive immune system.

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