12. The diagram shows layers deposited under a body or water.
This layering continued for
millions of years.
Desd plants
and animals
Dead plants
and animals
Water
What most likely happened to the
dead plants and animals?

Many rivers in central asia come from

What effect has the drug trade had on some governments in middle and south america? a. it has funded political instability. b. many nations have created democratic governments. c. many governments have allowed the drug trade to fund local programs. d. it has funded political stability.

American consumption has had which of the following effects on the environment?