Using one-letter codes, write out the base sequences that are complementary to the code: ATACCTGC

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).

Combustion is the act or process of burning. therefore, i believe the answer is  a: burning wood. 

The higher the temperature, the increased rate constant for a reaction.(positive linear association)