Answer: Rust is an example of a chemical change.
Explanation: Remember, a chemical change has to do with chemicals permanently changing something. Rust comes form metal and oxygen. When these two chemicals mix, it causes rust.
B. Marco Polo, I just got this answer right on my test
Answer:
Conservation of water can ensure that supplies of fresh water will be available for everyone, today and tomorrow.
Explanation:
Water conservation involves changing habits. Since many of these habits have evolved over a lifetime, they can prove difficult to alter. People can become active in conserving water by starting simply, then gradually taking more advanced steps to reduce water consumption. The simplest habits involve turning off water whenever it is not being used. When water is needed for rinsing dishes, it can be held in a sink rather than allowing it to flow unused down the drain
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<span>Politics
Ignore this i just need at 20 character limit
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Answer:
50%
Explanation:
One in five species on Earth now faces extinction, and that will rise to 50% by the end of the century unless urgent action is taken.
