Who was the Greek god of the sea?

Poseidon is considered the Greek god of the sea, as well as earthquakes and horses. In Greek mythology, he is depicted as one of the major deities and is often portrayed with a trident, a three-pronged fishing spear that symbolizes his dominion over the sea. He was one of the twelve Olympian gods and the brother of Zeus and Hades, further establishing his significance within the pantheon of Greek mythology. Poseidon played a crucial role in various myths and was associated with both the calm and turbulent aspects of the sea. His dual nature both as a nurturing figure and a force of destruction highlights his complex character in mythology.

The other options represent different gods within Greek mythology: Apollo is the god of the sun, music, and prophecy; Hades is the god of the underworld; and Zeus is the king of the gods, associated with the sky and thunder. Each of these deities has distinct domains and attributes, which clearly delineates Poseidon’s unique role as the ruler of the sea.