I'd have to say The best answer is B
Fireworks twinkle bright colors when gunpowder and "stars" reacts with oxygen. (These stars hold fuel, an oxidizing agent, a binder and metal salts or metal oxides) [This information is found at https://www.livescience.com/32675-how-do-fireworks-get-their-colors.html if you'd like to go read more] :)
Answer: because water is much more dense than air, tidal energy is more powerful than wind energy. Unlike wind, tides are predictable and stable. Where tidal generators are used, they produce a steady, reliable stream of electricity
Explanation:
The lake and the boat are representing the cell with the water in the lake as cytoplasm, the embankments as the cell membrane, and the boat as the nucleus. In this case, the fishes present in the water of the lake will represent the different cell organelles, such as the mitochondria, Golgi apparatus, ribosomes etc. The cell organelles are present in the cytoplasm of the cell, and the fishes are present inside the water perfectly representing them.
Hence, the answer is 'cell organelles'.