1 BaCl molecule has three atoms hence 3 BaCl molecules have 9 atoms
That will be regarding the water cycle. Write about the importance of the water cycle, each state from evaporation, condensation, precipitation, and run off. How the water cycle affects weather, animals, and the environment.
Mass of 1 centigram is equal to 0.01 grams
So, option C is your answer!
Hope this helps!
B. Decomposition is the correct answer~