Author Question: How much material is accreted to Earth from outer space on a daily basis? A) 1,000,000 dust ... (Read 45 times)

burchfield96 · **on:** Jul 16, 2018

How much material is accreted to Earth from outer space on a daily basis?

A) 1,000,000 dust particles per day
B) 10 grams per day
C) 100,000 kg per day
D) 10,000 liters per day

Question 2

Differentiation of planetary embryos results in denser ________ cores and less-dense ________ mantles.

A) silicate, non-silicate
B) metallic, silicate
C) silicate, metallic
D) non-metallic, metallic