The presence of a magnetic field is a good indication that
A) the Earth's interior is similar to Mercury's, as both have fields.
B) a huge iron meteorite lies somewhere high up in the mantle, not in the core.
C) the Earth has a liquid metal outer core, spinning rapidly as it rotates.
D) the Earth's interior has had time to solidify, with a rigid bar magnet created.
E) the Earth's interior must be completely molten to the center.
C
You might also like to view...
The shepherd moons keep the ring particles in their rings by:
A) repelling the ring particles, causing them to slow down. B) repelling the ring particles, causing them to speed up or slow down. C) attracting the ring particles, causing them speed up. D) attracting the ring particles, causing them to speed up or slow down. E) both attracting and repelling the ring particles, causing them to speed up or slow down.
The Tully-Fisher relation exists between the galaxy's luminosity and its
A) age. B) mass. C) size. D) rotation. E) color.
If you are 5'10'' tall, what is your height in meters? (2.54 cm = 1.00 in.)
A) 1.5 m B) 1.6 m C) 1.7 m D) 1.8 m
How much heat (in kcal) must be removed to make ice at ?10°C from 2 kg of water at 20°C? (The specific heat of ice is 0.50 cal/g/°C.)
a. 190 b. 200 c. 240 d. 210 e. 50