Seas and oceans
By Sharhabil Hassan
(3279)
The Wonders of the Seas and Oceans
Covering over 71% of Earth's surface, the
seas and oceans hold immense power,
regulating our climate and sustaining a
breathtaking marine biodiversity.
Understanding the Oceans
• Defining Seas and Oceans
• Seas are smaller, partially enclosed by land, while oceans are vast
expanses of saltwater.
• The Five Major Oceans
• Pacific, Atlantic, Indian, Southern, and Arctic Oceans make up the
world's oceanic expanses.
• Oceanography
• The scientific study of oceans, covering their physical, chemical,
geological, and biological aspects.
Marine Life: A Vibrant
Tapestry
Plankton to Whales
Oceans teem with a mind-boggling variety of life forms,
sustaining complex food webs.
Crucial Biodiversity
Marine life plays a vital role in maintaining healthy,
functioning ocean ecosystems.
Delicate Balance
The fragility of marine ecosystems makes them vulnerable to
human impacts.
Oceans and Climate Regulation
Heat Absorption
Oceans act as a giant heat sink, absorbing the sun's energy.
Heat Transport
Ocean currents redistribute this heat, influencing global weather
patterns and climate.
Climate Regulation
Oceans play a crucial role in
Threats to the Oceans
Pollution
Plastic waste, oil spills, and chemical runoff
threaten marine ecosystems.
Overfishing
Unsustainable fishing practices deplete fish
populations and disrupt food webs.
Climate Change
Rising temperatures, acidification, and sea level
rise endanger marine life.
Thankyou
