EARTH STATISTICS Flashcards by Janielle Benito | Brainscape

Q

Age of Earth

A

4.56 Ga

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Q

Shape of Earth

A

Oblate Spheroid

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Q

Eccentricity of Earth

A

0.0167

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Q

Average Obliquity of Earth

A

23.5 degrees

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Q

Minimum Obliquity of Earth

A

22.1 degrees

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Q

Maximum Obliquity of Earth

A

24.5 degrees

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Q

Equatorial Diameter of Earth

A

12,756.27 km

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Q

Polar Diameter of Earth

A

12,713.504 km

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Q

Mass of Earth

A

5.9735 x 10^24 kg

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Q

Mass of Earth’s Crust

A

2.36 x 10^22 kg

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Q

Volume of Earth’s Crust by Igneous Composition

A

64.7%

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Q

Volume of Earth’s Crust by Sedimentary Composition

A

7.9%

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Q

Volume of Earth’s Crust by Metamorphic Compositon

A

27.4%

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Q

Mass of Earth’s Mantle

A

4.043 x 10^24 kg

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Q

Mass of Earth’s Core

A

1.883 x 10^24 kg

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Q

Earth’s Average Density

A

5.513 x 10^3 kg/m^3

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Q

Earth’s Equatorial Surface Gravity

A

9.780.26771 m/s^2

Q

Earth’s Polar Surface Gravity

A

9.832186368 m/s^2

Q

Earth’s Area

A

5.10 x 10^14 m^2

Q

Earth’s Land Area

A

1.48 x 10^14 m^2

Q

Continetnal Area of Earth (Including Margins)

A

2.0 x 10^14 m^2

Q

Water Area of Earth

A

3.62 x 10^14 m^2

Q

Oceanic Area (Excluding margins) of Eath

A

3.1 x 10^14 m^2

Q

Average Land Elevation of Earth

A

875 m

Q

Average Ocean Depth of Earth

A

3794 m

Q

Average Continental Crust thickness of Earth

A

40 km

Q

Average Oceanic Crust thickness of Earth

A

6 km

Q

Volume of Ocean in Earth

A

1370 x 10 ^6 km^3

Q

Earth’s Annual Ocean Precipitation

A

297 x 10^3 km ^3

Q

Earth’s Annual Ocean Evaporation

A

334 x 10^3 km^3

Q

Earth’s Annual Land Precipitation

A

99 x 10^3 km^3

Q

Earth’s Land Evaporation

A

62 x 10^3 km^3

Q

Earth’s Annual Runoff Volume

A

37 x 10^3 km^3

Q

Earth’s Atmospheric Pressure at 0 km

A

760 mm Hg

Q

Earth’s Atmospheric Pressure at 50 km

A

7.5 x 10^-1 mm Hg

Q

Earth’s Atmospheric Pressure at 100 km

A

4.2 x 10^-4 mm Hg

Q

Earth’s Atmospheric Pressure at 160 km

A

2.0 x 10 ^-6 mmHg

Q

Earth’s Atmospheric Density at 0 km

A

1,220 g/m^3

Q

Earth’s Atmospheric Density at 50 km

A

1.3 g/m^3

Q

Earth’s Atmospheric Density at 100 km

A

8.0 x 10-4 g/m^3

Q

Earth’s Atmospheric Density at 160 km

A

1.5 x 10^-6 g/m^3