"to inform the audience on the condition of america's passenger trains." what is the specific purpose of this speech?

The chart shows four articles read by the students in a science class

What is the social order of the ancient river valley civilization of mesopotamia?

The passage below can be revised to make it more concise. which word is a modifier that can be eliminated because it adds no meaning? dr. madison is somewhat skeptical about stories of global warming. she has gathered scientific data in remote areas to prove her position. somewhat global scientific remote