This warming is in addition to carbon dioxide's better-known effect as a heat-trapping greenhouse gas. For scientists trying to predict global climate change in the coming century, the study underscores the importance of including plants in their climate models.
It is a physical change. All phase changes are physical, not chemical. The chemical composition of water does not change when it changes from a liquid to a gas, or for that ma â¦ tter, to a solid.
Answer: Dissolving sugar in water is an example of a physical change. Here's why: A chemical change produces new chemical products. In order for sugar in water to be a chemical change, something new would need to result.A chemical reaction would have to occur.However, mixing sugar and water simply produces...sugar in water! The substances may change form, but not identity.That's a physical change. chemical reaction would have to occur. However, mixing sugar and water simply produces... sugar in water! The substances may change form, but not identity. That's a physical change.