The transfer of heat by air currents (or currents in a liquid)
What is covection?
100
With respect to matter, Earth is mostly a ___________ system.
What is closed?
100
The narrow layer of Earth where life-supporting conditions exist
What is the biosphere?
100
The most abundant gas in Earth’s atmosphere is
What is nitrogen?
200
The stratosphere is the atmospheric layer above the
What is the troposphere?
200
The warmest temperature zone of the ocean
What is the surface zone?
200
The thin layer of the Earth upon which tectonic plates move around is called the
What is asthenosphere?
200
Currents at the surface of the ocean are moved mostly by
What is wind?
300
Rain and melting snow that trickles down through the ground
What is groundwater?
300
Divided pieces of the lithosphere
What are tectonic plates?
300
The continuous movement of water into the air, onto land, and then back to water sources
What is the Water Cycle?
300
The ionosphere is located here
What is the thermosphere?
300
Most clouds form here
What is the troposphere?
400
The ozone layer is here
What is the stratosphere?
400
Three greenhouse gases
What are carbon dioxide, methane, water vapor?
400
The hottest layer of the atmosphere
What is the thermosphere?
400
Compound that absorbs UV energy
What is ozone?
500
Most of the precipitation that falls between the Rocky Mountains in the west and the Appalachian Mountains in the east eventually drains into
What is the Mississippi River?
500
The aurora borealis, or Northern Lights are caused by the collision of energetic charged particles with atoms in a high altitude layer of the atmosphere, called
What is the ionosphere?
500
Contains nearly 75% of the world's most active volcanoes.
What is the Ring of Fire?
500
The coldest layer of the atmosphere
What is the Mesophere?
500
The process in which gases trap heat near the Earth