Earth Statistics

Question 1

Age of Earth

Answer 1

4.56 Ga

Question 2

Shape of Earth

Answer 2

Oblate Spheroid

Question 3

Earth Eccentricity

Answer 3

0.0167

Question 4

Average Earth Obliquity

Answer 4

23.5 degrees

Question 5

Minimum Earth Obliquity

Answer 5

22.1 degrees

Question 6

Maximum Earth Obliquity

Answer 6

24.5 degrees

Question 7

The angle between the planes of Earth’s equator
and orbit.

Answer 7

Obliquity

Question 8

The variation of an ellipse from a circle.

Answer 8

Eccentricity

Question 9

Equatorial Diameter

Answer 9

12,756.27 km

Question 10

Polar Diameter

Answer 10

12,713.504 km

Question 11

Earth Mass

Answer 11

5.9736 x 10^24 kg

Question 12

Mass of Crust

Answer 12

2.36 x 10^22 kg

Question 13

Volume of crust by Composition:
Igneous

Answer 13

64.7%

Question 14

Volume of crust by Composition:
Sedimentary

Answer 14

7.9%

Question 15

Volume of crust by Composition:
Metamorphic

Answer 15

27.4%

Question 16

Mass of Mantle

Answer 16

4.043 x 1-^24 kg

Question 17

Mass of Core

Answer 17

1.883 x 10^24 kg

Question 18

Average density of Earth

Answer 18

5.513 x 10^3 kg/m^3

Question 19

Equatorial Surface gravity

Answer 19

9.780.26711 m/s^2

Question 20

Polar Surface gravity

Answer 20

9.832186368 m/s^2

Question 21

Area of Earth

Answer 21

5.10 x 10^14 m^2

Question 22

Earth Land area

Answer 22

1.48 x 10^14 m^2

Question 23

Earth Continental area( including margins)

Answer 23

2.0 x 10^14 m^2

Question 24

Earth Water area

Answer 24

3.62 x 10^14 m^2

Question 25

Earth water area(excluding margins)

Answer 25

3.1 x 10^14 m^2

Question 26

Average land elevation

Answer 26

875 m

Question 27

Average ocean depth

Answer 27

3794 m

Question 28

Average continental crust thickness

Answer 28

40 km

Question 29

Average oceanic crust thickness

Answer 29

6 km

Question 30

Volume of ocean

Answer 30

1370 x 10^6 km^3

Question 31

Annual ocean precipitation

Answer 31

297 x 10^3 km^3

Question 32

Annual ocean evaporation

Answer 32

334 x 10^3 km^3

Question 33

Annual land precipitation

Answer 33

99 x 10^3 km^3

Question 34

Annual runoff volume

Answer 34

37 x 10^3 km^3

Question 35

Atmospheric pressure: at 0 km

Answer 35

760 mm Hg

Question 36

Atmospheric pressure: at 50 km

Answer 36

7.5 x 10^-1 mm Hg

Question 37

Atmospheric pressure: at 100 km

Answer 37

4.2 x 10^-4 mm Hg

Question 38

Atmospheric pressure: at 160 km

Answer 38

2.0 x 10^-6 mm Hg

Question 39

Atmospheric density: at 0 km

Answer 39

1,200 g/m^3

Question 40

Atmospheric density: at 50 km

Answer 40

1.3 g/m^3

Question 41

Atmospheric density: at 100 km

Answer 41

8.0 x 10^-4 g/m^3

Question 42

Atmospheric density: at 160 km

Answer 42

1.5 x 10^-6 g/m^3