Young Earth developed a layered structure under the influence of

A) impact heating and convection in its interior.
B) gravitational contraction and radioactive decay.
C) meteorite bombardment.
D) gravity and density segregation—the process of differentiation.


Answer: D

Physics & Space Science

You might also like to view...

Briefly explain why spectral lines are useful in determining the temperature of their source

What will be an ideal response?

Physics & Space Science

A 1000-kg barge is being towed by means of two horizontal cables. One cable is pulling with a force of 80.0 N in a direction 30.0° west of north

In what direction should the second cable pull so that the barge will accelerate northward, if the force exerted by the cable is 120 N? Assume that the water exerts no appreciable frictional drag on the barge. A) 47.5° east of north B) 19.5° east of north C) 39.0° east of north D) 21.1° east of north E) 54.7° east of north

Physics & Space Science

The largest volumes of magma extruded on the continents are

A) flood and plateau basalts. B) central-vent type volcanoes. C) batholiths. D) from volcanoes with a high silica content.

Physics & Space Science

A volume of gas is decreased by half while the temperature remains constant. How much does the gas pressure change?

Physics & Space Science