earth
a body of water where the river meets the ocean
what is an estuary
a mineral containing metal
what is an ore
a large stream that moves through the ocean
what is an ocean current
use of plant and animal products to create alternative fuel
what is biofuel
vaporous fossil fuel
what is natural gas
a high ridge that separates two river systems
what is a drainage divide
all water on earth, whether liquid, solid, or gas is part of this
what is the hydrosphere
sedimentary rock formed from the remains of living things instead of minerals
what is coal
the process in which sediments are transported along the coast with the current
what is longshore drift
an island parallel to the mainland's shore
what is a barrier island
the point at the earth's surface where the damage of an earthquake is most severe
what is the epicenter
the type of rock formed by magma or lava
an enormous wave caused by an earthquake
the deepest point of the ocean
what is Challenger Deep - Mariana Trench
the flat, mostly level floor of the ocean
what is the abyssal plain
underwater plains that border the continents
what is the continental shelf
the type of seafloor mud made from minerals and the remains of tiny ocean organisms
what is ooze
the theory that crustal plate activity can cause geological events and processes
what is plate tectonics
an opening in the ocean floor that releases hot, mineral-rich water
what is a hydrothermal vent
underwater volcanic mountain
what is a seamount
an underwater valley where the oceanic crust seems to be separating
what is a rift
a low area of land near the coast that floods with the tide
what is a salt marsh
the gravitational forces of the sun and moon align and are combined to create this tide
what is a spring tide
the reason neap tides are weak
the gravitational forces of the sun and moon at right angles work against each other
tectonic plate activity in which heavier plates are believed to have slid under lighter plates
what is subduction