D. There must be oxygen added. 2 of them don't even have oxygen anywhere in the formula, and the 3rd loses oxygen, which is reduction.
Changes in phase from solid to liquid (melting) and from liquid to gas (boiling) require energy. When solid ice melts and becomes a liquid, the particles of the substance move farther apart and heat energy is gained. When water boils, if forms steam (a gas).
Answer:
Osmosis is a type of passive transport. The best statement that accurately describes osmosis is: Osmosis is the diffusion of water across a membrane.
Explanation:
