Study the graph below and answer the question. How many major groups are being compared?

two
eight
nine
three

Read this excerpt from "birdfoot's grampa.” but, leathery hands full of wet brown life, knee deep in the summer roadside grass, he just smiled and said they have places to go to too. why does the author use the words "wet brown life” in this excerpt? a to show that the grass is still alive and growing b to indicate that the mud is all over everything c to signify how wet the night has become d to point out that the toads are living things

Ill give 50 points and brainiest if i can. would be grateful for any on this. the industrial revolution moved the united states into a new economic era. using the resources provided respond to the following prompts as they deal with economic development in the united states. using the maps available on the web links tab, explain the economic development of the united states, especially in regard to its emergence as a major industrial power. (focus on industrial sections; cities and towns; territorial growth; agricultural, mineral, and resource regions; coal fields; slavery; value and production; and distribution of agriculture and manufacturing areas.) using the available maps, explain the economic advantages of the physical geography of the united states. explain the gains that the united states made from trade.

What is central purpose of the letter