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