Easily explore by topic, media type, grade level, and educational standards. Dive in and find answers to your deepest ocean questions Ocean acidification is a reduction in the ph of the ocean over an extended period of time, caused primarily by an increase of carbon dioxide from the atmosphere.
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Without the ocean, life as we know it wouldn't be possible
There are a number of key reasons why
First, the ocean is the largest source of oxygen on earth According to scientists, approximately half of the planet's oxygen production originates from the sea Most of this oxygen is created in the top 200 meters (656 feet) of the ocean's surface Within this depth, sunlight penetrates.
Understanding how the ocean works is foundational to understanding life on this planet and to the discipline of oceanography Get to know the big systems of the ocean Its cycles, circulation, zones, and connection to the atmosphere Learn about ocean chemistry, life and landscapes on the seafloor, plate movements, shorelines, and icy regions.
Why is the ocean blue
People have wondered this for hundreds of years One idea is that it reflects the sky From the coast, it may appear a deep blue on a sunny day Or gray when it's stormy
Or even turn a brilliant pink during sunrise or sunset But if we sink below the surface, the blue color remains Here, the water isn't reflecting the sky Ocean circulation refers to the flow of water throughout the world's oceans, which acts as a fundamental driver of earth's climate
This continuous movement redistributes heat, cycles essential nutrients for marine life, and affects the structure and health of ocean ecosystems.
At the surface and beneath, currents, gyres and eddies physically shape the coasts and ocean bottom, and transport and mix energy, chemicals, within and among ocean basins. A trip to the ocean means sun, wind, and waves
