Earth's structure Flashcards
1
Q
Equatorial Diameter
A
12 757 +-kms
2
Q
polar diameter
A
17 714 +- kms
3
Q
Sea Floor area
A
381 million sq km
4
Q
Land mass area
A
149 million sq km
5
Q
Shape of earth
A
Oblate spheroid, geoid
6
Q
What are the 3 earth’s surface
A
atmosphere, lithosphere, and inner earth
7
Q
AL: coldest region
A
mesosphere
8
Q
AL: elemental ions are present
A
Thermosphere/Ionosphere
9
Q
AL: O3 is present
A
Stratosphere
10
Q
AL: weather disturbances are present
A
Troposhere
11
Q
EL: crust that is less dense
A
Continental crust
12
Q
EL: crust that is denser
A
Oceanic crust
13
Q
EL: discontinuity in crust
A
mohorovic discontinuity
14
Q
EL: also called as upper mantle
A
Asthenosphere
15
Q
EL: Discontinuity in mantle
A
Gutenberg discontinuity
