What is the "ring of fire" and why would people be i interested in this area when studying volcanies

Using complete sentences, outline two specific examples of how technology advances make the world seem smaller. explain what it means to say the world is “shrinking”

Simple astronomical telescope the objective lens has a focal length of 75 cm and that of a piece of 5cm of the lenses are 18 cm apart when will be final image of a distant object before

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.