Author Question: Earth is a layered sphere with the ________-density material found near the center of Earth and the ... (Read 57 times)

corkyiscool3328 · **on:** Aug 22, 2018

Earth is a layered sphere with the ________-density material found near the center of Earth and the ________- density material located near the surface.

A) highest; lowest
B) highest; highest
C) lowest; lowest
D) lowest; highest

Question 2

What percent of the ocean's biomass relies either directly or indirectly on organic matter supplied by photosynthetic primary productivity?

A) 98.00
B) 98.50
C) 99.50
D) 99.90
E) 100