HELP HELP HELP Index fossils are useful tools for geologists.
A. What are the three characteristics of a good index fossil?
B. What makes each of these characteristics important for geologists?

The vegetation that thrives in the tundra is limited to a. mosses, barley, wheat, and corn. b. coniferous trees. c. dwarf shrubs, mosses, lichen, potatoes, and beans. d. mosses, lichen, algae, and dwarf shrubs.

The creation of the trans-siberian railway allowed people to travel across russia. how could this railway impact russian culture?

At which boundary does subduction stop occurring, resulting in a mountain range?