The mass of some corn plants at the end of their growth period was 6 tons per acre. Most of this mass was produced from:

There are specialized producers that live in warm water vents deep in the ocean. these producers do not per-form from photosynthesis, but instead perform a similar process with iron and other chemicals. why do you think these producers use this process instead of photosynthesis?

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.

Sediment layers stop lateral spreading when: they encounter a barrier they encounter an opposing current they run out of additional sedimentary material