Answer:
ph is unit of measuring acid and base
if ph is less than 7 it is acid and ph is more than 7 it is base
Pollution can come from both natural sources and human activities depending on the type of pollutant.
<h3>What is pollution?</h3>
It is the release of substances into the environment to the extent that the well-being of plants, animals, and humans starts getting affected.
Substances that are released into the environment to the extent that they start affecting the organisms in the environment negatively are known as pollutants.
Pollutants can come from natural sources or as a result of human activities.
For example pollutants such as oxides of sulfur, methane, carbon dioxide, etc. can come from natural processes such as volcanic eruptions, activities of microbes, etc.
Pollutants such as oxides of carbon and sulfur can also be generated as a result of human activities such as the burning of coal, technological inventions, etc.
More on pollution can be found here: brainly.com/question/23857736
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Climate change is usually negative because if it dramatic it could kill most of species.
For an animal to be extinct none more of that specific species must exist on Earth. This makes it impossible for that species to come back to life.
Answer:
D I'm pretty sure i hope i'm right
