The World Ocean is the interconnected system of Earth's oceanic waters, including the Pacific, Atlantic, Indian, Southern, and Arctic Oceans.
Name the five main oceans that make up the World Ocean.
The five main oceans are the Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern Ocean, and Arctic Ocean.
What percentage of the Earth’s surface is covered by ocean?
About 71% of the Earth’s surface is covered by ocean.
Which ocean is the largest?
The Pacific Ocean is the largest ocean.
What is the smallest ocean in the World Ocean system?
The Arctic Ocean is the smallest ocean.
Why is the World Ocean important?
The World Ocean regulates climate, provides food and oxygen, is a route for trade, and is home to diverse marine life.
What is the deepest part of the world's oceans?
The Mariana Trench in the Pacific Ocean is the deepest part of the world's oceans.
What is the main cause of ocean currents?
Ocean currents are primarily caused by wind, the Earth's rotation, temperature differences, and salinity variations.
How do oceans affect climate?
Oceans store and distribute solar energy and play a key role in regulating the Earth's climate by transporting warm and cold water.
What are tides and what causes them?
Tides are the rise and fall of sea levels caused by the gravitational forces of the moon and the sun on Earth's waters.
What is the role of phytoplankton in the ocean ecosystem?
Phytoplankton are crucial as they produce oxygen and form the base of most ocean food webs.
What is marine biodiversity?
Marine biodiversity refers to the variety of life within ecosystems found in oceanic and coastal environments.
How do human activities affect the World Ocean?
Human activities impact the ocean through pollution, overfishing, and climate change, leading to habitat destruction and loss of biodiversity.
What is the significance of coral reefs?
Coral reefs provide habitat for marine life, protect coastlines, and support tourism and fishing industries.
What is ocean acidification, and why is it a concern?
Ocean acidification is the decline in ocean pH due to increased CO2 absorption, which can harm marine life, especially organisms with calcium carbonate structures like corals.