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<u>ANSWER </u>–</h3>
Athens and Sparta both used enslaved people, but Athenian men would work with the enslaved people.
In Sparta, there were state-owned slaves called helots. ... In Athens, the lives of slaves were somewhat better. Slaves were privately owned in Athens, and each new slave was welcomed into the family with a ceremony. Slaves in Athens often worked with free citizens, although they were not paid.
The solutions to environmental problems are “coordination of environmental efforts between sectors”, “enforcement of environmental regulations”, “sustainable land management practices”.
<u>Explanation:
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The environmental problems in any region can be a threat to that region since it may affect their health to a greater extent. In order to eradicate any environmental problem in a region there must be a good coordination existing between sectors which will result in solving an environmental problem easily and quickly.
Strict enforcement of environmental regulation acts and policies also plays a major role in solving the environmental problems. Land management practices are those that combine the land management, water bio diversity and other resources in environment for meeting the needs of human beings.
<span>The largest mass extinction in Earth's history, the Permian–Triassic extinction event. The effects of this catastrophe were so devastating that it took life on land 30 million years into the Mesozoic to recover.[1] Recovery of life in the sea may have been much faster." </span>
