Answer:
Skin serves as a protective barrier, a way to sense the world, and a layer that keeps nutrients and water inside the body.
Explanation:
D. Oxygen and metal
They usually contain some form of metallic cation, given that carbonates are the most distributed minerals in the Earth's crust.
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none of the answers r there
Answer:
This person can be described as an environmentalist.
Explanation:
An environmentalist is a person who has adopted environmentalism as a philosophy that makes this person work and manages to direct their activities towards the preservation of the environment and sustainable development. These people seek to teach others to preserve the environment and seek to defend it through politics, economics and any other social factor that can help to achieve this goal.
The person presented in the question above is an environmentalist, because, as we can see, this person is available to give a lecture on environmental preservation, interacts with environmental activist groups and seeks political support to address issues on climate issues, sustainability and biodiversity .
