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Three types of plate boundaries
divergent, convergent, transform
name of the scientist that developed theory of plate tectonics
J. Tuzo Wilson
What is created when two oceanic plates diverges
mid ocean ridge
When two continental plates collide
Mountains are formed
When two continental plates diverge
A rift valley is formed
When two oceanic plates converge what forms
ocean trench
when two plates diverge what is formed
a valley is formed
continental drift is supported by pieces of evdience like
continents fitting like a puzzle piece and the same fossils found on different contients
what is pangea
supercontinent
Why was Alfred Wegener's theory rejected?
He did not know what caused the continents to drift.
the evidence suppoorting sea floor spreading is
the reversal of the poles magnetic fields new crust being created and old crust being subducted, or pushed down into the Earth.
who developed the idea for sea floor spreading
harry hess
What is erosion?
The process in which rocks break apart from wind, sun and water
What is deposition?
The process in which bits of brown rock are transported to another place
what is the sun a driving force of?
ocean currents and atmospheric movements
Does cooler air have a higher pressure? What about warm air?
Cooler air has high pressure and warmer air has low
What has air is more denser cooler air or warmer air
cooler air is denser
What is the Coriolis Effect?
the curved path the wind follows due to the Earth's rotation on its axis
What is a doldrum?
An area of very little wind at the equator
How many convection cells are there?( due to to the uneven heating of the Earth and the Coriolis
6
What is a process of sublimation
solid to gas
The process of evaporation
water changes from a liquid to a gas
The process of condensation
Gas to liquid
What is carbon transfered to
through the atmosphere from processes that happen in plants and
Carbon is released into the atmosphere by
the atmosphere from trees and burning fossil fuels
