Earth is a layered sphere with the ________-density material ...

[corkyiscool3328]

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

[smrtceo]

Answer to Question 1

A

Answer to Question 2

D

[corkyiscool3328]

Excellent

[scikid]

Gracias!