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The largest and deepest ocean on Earth, stretching from Asia to the Americas.
"The Pacific Ocean is the largest ocean on Earth."
A group of islands clustered together in a body of water.
"Indonesia is an archipelago with thousands of islands."
The measurement of depth of water in oceans, seas, or lakes.
"Bathymetry is essential for understanding oceanic topography."
The salt content of soil or water, typically measured as a concentration.
"The salinity of the ocean varies depending on depth and location."
A layer in a body of water in which temperature changes rapidly with depth.
"The thermocline separates warm surface water from cold deep water."
Relating to the structure of the earth's crust and the large-scale processes that take place within it.
"Tectonic movements cause earthquakes and mountain formation."
The lateral and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
"The Pacific Ring of Fire is an area of intense subduction."
A sudden and violent shaking of the ground as a result of movements within the earth's crust.
"A powerful earthquake struck Japan last night."
The discharge of lava, ash, and gases from a volcano.
"The volcanic eruption covered the town in ash."
An oceanographic phenomenon that involves wind-driven motion of dense, cooler, and nutrient-rich water towards the ocean surface.
"Upwelling brings nutrients to the ocean surface."
A circular or spiral motion or form, especially a giant circular oceanic surface current.
"The Great Pacific Garbage Patch is trapped in a gyre."
Originating in human activity; caused by humans.
"Climate change is largely due to anthropogenic activities."
The presence in or introduction into the environment of a substance which has harmful or poisonous effects.
"Industrial pollution harms marine life."
Excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.
"Excess fertilizers lead to eutrophication in lakes."
The state of the atmosphere at a place and time as regards heat, dryness, sunshine, wind, rain, etc.
"The weather forecast predicts heavy rain tomorrow."
Connected with the sea, especially in relation to seaborne trade or naval matters.
"Bangladesh has a significant maritime boundary."
The action of conserving something, in particular preservation, protection, or restoration of the natural environment and of wildlife.
"Conservation efforts aim to protect endangered species."
Extremely surprising or impressive; amazing.
"The astonishing discovery changed the way we view the universe."
Involving new ideas or methods; being the first to develop or use new methods.
"The pioneering research opened new avenues in medicine."
Persistence in doing something despite difficulty or delay in achieving success.
"His perseverance in the face of adversity was truly inspiring."
A vehicle for driving over rough terrain, especially one driven by remote control over extraterrestrial terrain.
"The rover landed on Mars to begin its exploration."
The investigation of outer space by means of manned and unmanned spacecraft.
"Space exploration has expanded our knowledge of the universe."
A planet that orbits a star outside the solar system.
"Astronomers have discovered thousands of exoplanets in the last decade."
Positioned in or relating to the sky, or outer space as observed in astronomy.
"The celestial bodies in the sky were clearly visible last night."
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