Exam #1 Flashcards
(43 cards)
The four spheres are:
Atmosphere: gasses that surround our planet from the surface to space
Biosphere: all living things
Geosphere: All rocks, minerals, soils, etc
and hydrosphere: All of earths water
gasses that surround our planet from the surface to space
Atmosphere
all living things
Biosphere
All rocks, minerals, soils, etc
Geosphere
All of earths water
hydrosphere
A set of things working together as a parts of a mechanism or an interconnecting network
What is this called?
A System
An _____ system freely exchanges both matter and energy with its environment
(example, ocean, receives water and sediment from rivers, and rain, and then evaporation. Receives energy from sun and can re-emmitt that back into the world)
open
A ______ system ONLY exchanges energy with its environment, NO MATTER (solar system as an example)
closed
A lake is a ____ system
open
a balloon (over a short period of time) is an ____ system
closed
a flower is an _____ system
open
a thermos of hot soup is a _____ system
closed
Movement of matter and energy between spheres or between reservoirs (storehouses) within a sphere
What is this called? (starts with F)
Flux
The ____ of flux varies drastically between spheres and with different types of matter
rate
the recharge is GREATER than the discharge
This is a p_____ flux
positive flux
discharge is greater than the recharge (such as a draught)
this is a n______ flux
negative flux
The earth formed ____ billion years ago in a process that took approximately _ to __ million years
4.6 billion
5 to 20 million years
The earth formed __ billion years ago
4.6
Collision with a smaller planet (Theia) created the ____
moon
Cooling and density contrasts lead to formation of the earth’s L____s
layer’s
What are the four major layers of the earth?
1) S____ I____ C____
2) M____ (liquid) Ou__ C____
3) M____ S____ M___
4) S___ C____
Solid inner core
Molten (liquid) outer core
Mostly solid mantle
Solid crust
The m_____ nature of early earth allowed for chemically and physically distinct layers to develop due to density differentiation
(hint: liquid)
molten
Evidence for density and elemental composition of the earths layers is found how?
Seismic waves (density changes and solid-liquid state)
Which seismic wave is this?
P wave?
S wave?
or surface wave?
fastest wave, can go through both solids and liquids
p-wave