Because of all the dangers of sailing: scurvy, 'sea monsters' , storms, getting lost at sea and the early people- sailing off the face of the earth. These were all dangers they thought they would face on these voyages.
The Sirens were feared by sailors because they sang to them then killed them by drowned or beating them. They also wrecked their ships as an added bonus.
Sailors feared Poseidon, because they believed him to be the cause of earthquakes.
Scurvy, pirates, and vampires
the sailors feared the sirens because the song that the sirens were singing was leading them to their death.
because they have no money like macy
because they wanted him to get spices
did he face dangers and what
scurvy
Sailors call long sea journeys by sea "Voyages"
One the sailors ship could tip over,Two the ship could crash and sink.
The discovery that fresh fruit (particularly limes) prevented scurvy was important in improving the health of sailors on long distance voyages.