Geography
Examples of this type of steep-sided depression in the sea floor include the Aleutian, Sunda & Mariana
An alarming 2019 environmental report called for action to reduce the 8 million tons of this substance going into oceans every year.
Plastic
These marine habitats are called the "rainforests of the oceans."
Coral Reefs
These variations in the level of the oceans have the most variation at the new moon.
Tides
As recounted in the movie "Moana", Maui was this type of being
Demigod
Sailors gave the name "Roaring Forties" not to a decade but to a windy region between 40 & 50 degrees south this
Latitude
In 2018 National Geographic reported that half of this was dead, "akin to a forest after a devastating fire"
Great Barrier Reef
The phyto-type of these marine drifters contains algae & bacteria, while the zoo- type includes animal life
plankton
An earthquake where one plate moves under another & pushes the top plate up may cause this wave that can reach around 500 miles per hour
tsunami
Something's fishy, & it's this zodiacal constellation that reaches its highest point in the evening sky in November
Pisces
The deepest part of the oceans of the world is the Mariana Trench in this ocean.
Pacific Ocean
A group of animals no longer allowed to be hunted by Americans (except for indigenous populations)
Mammals
Whales are classified as either toothed or these, named for the bony filters in their mouths
Baleen
A German zoologist coined the name of this branch of biology that studies the relationship between organisms & their environments
Ecology
Considered an Australian folk hero, he was mourned worldwide after a fateful encounter in the Great Barrier Reef in 2006
Steve Irwin
It's the directional name given to the ocean that surrounds Antarctica.
Southern Ocean
Humans most commonly use the ocean as a source of what?
Food
Unlike seals, these beach lovers have external ears & can walk on their hind flippers
Sea lions
A transform fault such as the San Andreas is where 2 of these very large plates slide past each other.
Plate Tectonics
Tamil words for tie & wood give us the name of this type of twin-hulled boat.
Catamaran
Hurricanes originate in this region of the world's oceans near the equator marked by calm, light winds.
Doldrums
Global travel and commerce has resulted in the introduction of these nonnative organisms into new environments.
Invasive Species
The blue whale is the largest, but this species, known for its enormous head, has the largest brain
Sperm whale
300 million years ago, a giant ocean called Panthalassa surrounded this landmass with the same first 3 letters
Pangaea
The 1964 article that gave this term its current use noted the "menace that haunts the Atlantic off our southeastern coast"
Bermuda Triangle