Exploring Ocean Dynamics and Life

What causes ocean currents?

• Ocean currents are influenced only by the moon's phases.

• Ocean currents are solely caused by marine life activities.

• Ocean currents are caused by wind, Earth's rotation, temperature and salinity differences, and gravitational forces.

• Ocean currents are caused by underwater volcanoes.

Which type of tide occurs when the sun and moon are aligned?

• High tide

• Spring tide

• Low tide

• Neap tide

What is the primary role of plankton in the ocean ecosystem?

• The primary role of plankton in the ocean ecosystem is to serve as the base of the food web, providing energy and nutrients for marine life.

• Plankton are responsible for the ocean's wave patterns.

• Plankton are the main source of freshwater in the ocean.

• Plankton primarily act as predators in the ocean.

Which of the following is considered nekton?

• Plankton, algae, and corals

• Crustaceans, sea turtles, and seaweed

• Fish, squid, and marine mammals

• Bacteria, sponges, and jellyfish

What resource is commonly harvested from the ocean for food?

• Coral

• Seaweed

• Salt

• Fish

What is desalination?

• Desalination is the method of boiling water to create steam.

• Desalination is the process of converting seawater into fresh water.

• Desalination is the process of filtering pollutants from fresh water.

• Desalination is the technique of adding salt to fresh water.

Which energy source is derived from ocean waves?

• Wave energy

• Solar energy

• Geothermal energy

• Wind energy

What is a major threat to ocean ecosystems?

• Overfishing

• Plastic pollution

• Climate change

• Invasive species

Why are oceans important for global climate regulation?

• Oceans have no impact on weather patterns.

• Oceans are only important for marine life and not for climate.

• Oceans are primarily responsible for producing oxygen.

• Oceans are crucial for regulating global climate by absorbing carbon dioxide, storing heat, and influencing weather patterns.

What is sustainable management of oceans?

• Using ocean resources solely for commercial profit without sustainability measures.

• Restricting all human activities in ocean areas to preserve marine life.

• Sustainable management of oceans is the practice of using ocean resources responsibly to maintain ecosystem health and support human livelihoods.

• Exploiting ocean resources without regard for environmental impact.