The practice of raising fish in ponds or tanks is known as:

Aquaculture
Fish harvesting
Angling
Fish processing

The correct answer is: a) Aquaculture.

Aquaculture is the farming of aquatic organisms including fish, mollusks, crustaceans, aquatic plants, algae and other aquatic organisms. Aquaculture includes both marine and freshwater organisms.

Fish harvesting is the act of catching or collecting fish. It can be done by a variety of methods, including fishing with nets, traps, or lines.

Angling is the practice of fishing with a hook and line. It is a popular recreational activity and can also be a commercial activity.

Fish processing is the preparation of fish for human consumption. It can include filleting, smoking, canning, and freezing.

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