Earth's Evolution and Spheres Flashcards
Earth’s first enduring atmosphere was generated by a process called?
Outgassing
Layer of the earth’s sphere
Atmosphere, hydrosphere, biosphere, geosphere
The bottom layer in which we live, where temperature decreases with an increase in altitude.
Troposphere
All weather phenomena occur in this layer.
Troposphere
the temperatures increase , because it is in this layer that the atmosphere’s zone is concentrated.
Stratosphere
the temperatures again decrease with height.
Mesosphere
Coldest region in the atmosphere
Mesosphere
extremely rarefied air of this outer most layer, temperatures again increase, owing to the absorption of very short-wave, high-energy solar radiation by atoms of oxygen and nitrogen.
Thermosphere
Temperatures rise to extremely high values of more than 1000°C in the ____________.
Thermosphere
Temperatures rise to extremely high values of more than 1000°C in the ______________.
Thermosphere
hydrosphere covers about how many percent of the earth
70
those portions of Earth’s surface where water is in solid form
Cryosphere
Other term for biosphere
Ecosphere
Zone of life in the earth
Biosphere
the global ecological system integrating all living beings and their relationships.
Biosphere
This sphere includes all the stuff that make up the crust and the core of the earth.
Geosphere