Author Question: The oldest hominid so far discovered dates back to A) 540 million years ago B) 65 million years ... (Read 182 times)

rayancarla1 · **on:** Jul 27, 2018

The oldest hominid so far discovered dates back to

A) 540 million years ago
B) 65 million years ago
C) a few thousand years ago
D) 6 to 7 million years ago

Question 2

You double your distance from a constant sound source that is radiating equally in all directions. What happens to the intensity of the sound? It reduces to

A) one-half its original value.
B) one-fourth its original value.
C) one-sixteenth its original value.
D) one-eighth its original value.
E) 1/ of its original value.