Shared Flashcard Set

Details

Planetary Systems
Planetary Systems and the Interior of Earth
28
Geology
Undergraduate 1
09/26/2012

Additional Geology Flashcards

 


 

Cards

Term
The planet with the most atmospheric mass:
Definition
Venus
Term
The planet that has relatively the largest amount of hydrogen
Definition
Jupter
Term
Planet with the largest amount of carbon dioxide in the atmosphere
Definition
Venus
Term
Planet with the lowest solid to gaseous mass ratio
Definition

Neptune

 

Term
Temperature of the outer solar photosphere
Definition
5500-5700
Term
The radius of earth
Definition
6,731 km
Term
average density of earth
Definition
1 million atmospheres
Term
Earth is estimated to be about 4.6 billion years old based on
Definition
the time of formation of the oceans
Term
Mars is a red planet potentially because
Definition
it contains a high density atmosphere with iron-bearing dust
Term
Moon rocks are different from terrestrial rocks because moon rocks contain
Definition
Highly refractory materials
Term
The average density of earth is
Definition
5.52 gm/cm^3
Term
Oxygen content of the arth's atmosphere began to increase at about 2.8 billion years ago only after 
Definition
the current bacterial photosyntehsis process came into existence
Term
The bacterial photosynthesis process before the current one involved the utilization of
Definition
H2S
Term
The average density of the sun is
Definition
1.41 bm/cm^3
Term
Nearly 99% of all the atoms in the Sun consist of
Definition

H and He

 

Term
Which planet has its axis of rotation tilted very highly?
Definition
Uranus
Term
Meteorites are of three types. Which could not have possibly come from the planet mars but could have come most likely from the asteroid belt?
Definition
Iron-meteorites
Term
Mars has the following atmospheric composition:
Definition
95% CO2
Term
Ice caps of Mars are covered at all times by 
Definition
part of the year by water ice and the other time by dry ice
Term
An estimated amount of cometary and asteroid materials that come to Earth each year is about
Definition
10^7 kg
Term
Sunspots are
Definition
Cooler regions than the surroundings
Term
In recent times, sun spot ccle is repeated about every
Definition
11 years
Term
The atmospheric composition of earth is kept in
Definition
chemical disequilibrium possibly by activity of living materials
Term
Earths crust is
Definition
primarily silicate in composition
Term
Earth's magnetic field is created by
Definition
materials within the core
Term
Escape speed of an objet from the surface of the earth is about 
Definition
11.2 km/sec or 25,000 miles per hour
Term
yhr sbrtshr dprrf og hyftohhrn molrvulrd sy 0 degree centigrade is about
Definition
1.69 km/sec
Supporting users have an ad free experience!