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a wall would be a phsyical barrier that can affect the listening process. If there is a wall between you and the person you're trying to communicate with you won't be able to hear them very well depending on the thickness and density of the wall. (is this really the question you were trying to ask?)
Grete barrier
Barrier
Freezing/melting or evaporation/condensation, are physical changes that don't affect the chemical nature of the substances.
If the species environment is not the way the species needs it to survive then the species will become extinct. for example, if doesn't have any trees, then it cant survive.
The thames barrier is effective beacause it prevents floods and storms to affect London city.
because of the wind blows the water up onto the barrier island
i dont know yo
mutation is the ability to change in a species mutation help s the species to get better equipped with the environment .It is nothing but evolution for example mutation in the animals such monkeys paved the way for the humans to grow
how does physical changes affect teens
Yes emotions can affect physical health in many cases. They affect brain, which affects the physical health of person.
Brittle is indeed a physical property. This physical property affects how a substance may be shaped or how it appears without having an affect on the chemical composition.