Fact 1: Carbon may be stored in sedimentary rock for millions of years.

Fact 2: Carbon is an essential element for almost all plant and animal life.

Given the two facts above, answer the question "What does almost all plant and animal life depend on?" with the following options: 
- desert
 - disease
 - biological diversity
 - Sedimentary rock
 - absorb light energy
 - sunlight
 - ghosts
 - Chlorophyll


 

    Sedimentary rock     