A
The layer of the soil that contains less organic material and more mineral material than the other layers
What is subsoil?
The sandy gently sloping underwater plain that borders the coasts of the continent
What is a continental shelf?
Ice crystals that grow as they absorb water vapor from a cloud and stick together
What are snowflakes?
Hills that form when advancing glacier overrun old piles of til
What are drumlins?
Combination of three air masses that form a Y shaped front
The main agent of chemical weathering
What is water?
Forms when rocks along one side of a fault move horizontally along the fault
What is a strike slip fault?
Type of volcano that pours out highly fluid lava during its mild eruptions to produce a broad, gently sloping cone
What is a shield volcano?
The idea that Darwin based his evolutionary ideas off of
What is natural selection?
Refers to the temperature at which cooling air becomes saturated
What is the dew point?
The gemstone that consists of corundum with traces of iron or titanium that gives it a distinctive blue color
What is sapphire?
Term for the 88 zones astronomers divide the celestial sphere into?
A star suddenly that is flaring up to many times its original brightness
What is a nova?
The convection cell that exists between latitude 30 and 60
What is the Ferrel cell?
The layer of the atmosphere that acts like a giant mirror, bouncing certain types of radio waves back down towards the ground
What is the ionosphere?
The Russian spacecraft that has become the primary way for astronauts to get to the ISS
What is Soyuz?
First visible sign that a tornado may be forming from a mesocyclone
What is a wall cloud?
Who is Galileo Galilei?
A sedimentary rock that consists of rough, angular fragments embedded in hardened sand or clay
What is breccia?
What is the Big Dipper?
The view that claims that understudying modern geological processes the key to understanding the earth's geological history
What is catastrophism?
Type of oceanographic vessel that is lowered from a surface ship near the area to be studied and can operate without any outside guidance
What is an AUV?
The sun outputs the same amount of energy in summer and winter, but summer is much warmer than winter. This factor of insolation has the most influence on this difference
What is the angle of the sun's rays?
The technique used to dramatically increase the resolution of radio telescope images by combining signals from multiple telescopes
What is interferometry?
United State's first launched space station
What is the Skylab?