The correct answer is - 45 percent.
Since the clock produces 45 useful unites energy units for every 100 unites of energy that it uses, than it turns out that the efficiency of the clock is 45 percent.
Natural resources made people be able to live their life and it all had to do with their geography
They contain fluorine atoms, carbon atoms and chlorine atoms.
Answer:
B. Looks at oceans as highways instead of barriers.
Explanation:
