Witch of the following is included in the five general causes of environmental problems

Earth's rotation cause the global convention current between the equator and the poles

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The answers are 3.c kelvin4.b liquids only

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).