Understanding Ocean Salinity

What is the primary reason the ocean is salty?

• Salt is only found in the ocean.

• Salt is added by marine animals.

• Salt is produced by ocean plants.

• Salt has accumulated over millions of years.

How does salt primarily enter the ocean?

• Via rivers carrying dissolved minerals.

• By ocean currents mixing with freshwater.

• Through volcanic eruptions.

• Through the melting of icebergs.

Why does the salt concentration in the ocean increase over time?

• Salt is added by human activities.

• Salt is continuously produced by marine life.

• Salt is generated by ocean currents.

• Salt is left behind when water evaporates.

Which ocean is known for being less salty due to freshwater dilution?

• The Red Sea

• The Atlantic Ocean

• The Arctic Ocean

• The Indian Ocean

What factor contributes to the Red Sea's high salinity?

• Proximity to the equator.

• Frequent volcanic activity.

• High evaporation rates and low freshwater inflow.

• Abundance of marine life.