Which sentence best describes how the Earth's densest elements ended up comprising the core. A
The lightest elements tended to float to the exterior forming the crust.

B
The densest elements tended to drift to the center forming the core.

C
The lightest elements floated to the exterior forming the crust and the densest element drifted towards the center forming the core.

D
None of the above.

568.98

explanation:

its math

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s