<span>Answer: a. take place in nuclear reactors
</span><span>Controlled nuclear chain reactions are the reaction in nuclear reactors. The reaction is controlled to make its rate slower. This will make the reaction relatively safer, so the energy produced can be changed into electricity in power plant. When the reaction is not controlled, it could cause explosive like in nuclear bomb.</span>
Wash your hands
Clean and sanitize surfaces
Answer:
Migration.
Explanation:
When an individual leaves an area, they are migrating.
Answer:
True
Explanation:
They protect you against illness and disease
80% of all the species of animals at or near the boundaries became extinct
