Earth Questions
Approximately how many miles is the Earth's surface from outer space?
100 miles
How much oxygen is Earth's atmosphere composed of?
21%
What is the radius of Earth?
6400 km
How much of the Earth's is contained in the ocean's?
96.5%
What are the layers of the Earth's atmosphere in order from lowest altitude to highest altitude?
Troposphere, Tropopause, Stratosphere, Mesosphere, Thermosphere (TTSMT)
Earth's crust is:
a thin layer of the least dense rock material
Water erosion dominates which planet?
earth
Which planet is the largest Terrestrial Planet?
earth
What causes Earth to have electromagnetic fields?
electric currents in the two regions that make up the earths core
What mountain on Earth has the highest altitude, from base to peak?
hawaii
Which two elements make up the Earth's atmosphere?
nitrogen and oxygen
What type of waves have scientists used in order to learn about Earth's interior?
seismic waves
Who drafted the first rough map of the ocean floors and suggested tectonic plate movement?
tharp and heezen
What is the order of the Earth's Layers:
the crust, the mantle, the outer core, and the inner core
Auroras are the result of
the interaction of earths magnetic field with earths atmosphere
The earth's core is as hot as the sun. (true or false)
true
