Answer:
They teach you the purpose of condoms (or you learn the hard way.)
how to prevent stds
Explanation:
That's all I can think of.
Answer:
Each station that measures the water quality characteristics....
Explanation:
like temperature and water level maybe....
Enzymes bind with chemical reactants called substrates
Answer: Your guess is right
Explanation: Other reactions release energy, so forming sucrose from glucose and fructose is endoergic. Also a water molecule is formed.
When two molecules form new molecule, order is increased and energy is needed that. IT could also possible to use standard energies of formation.