Answer:
Drugs can be both good and bad for you, like health drugs or anesthetics.
Some drugs CAN be addictive, alchohol can be a type of drug, cigars contain drugs, not all drugs are illegal, some drugs can be eaten.
Answer:
populsation, community, ecosystem, Biosphere
Species is a type or kind of thing while ecomorph is a local variety of a species whose appearance is determined by it's ecological environment
Anticline is the answer
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Answer:
The atmosphere and Earth's interior are layered by density. Gravity pulls more strongly on denser materials so denser materials are at the center of things. Earth's core, at its center, is denser than its crust. The lowest layer of the atmosphere is denser than the upper layer.