Name 3 ways to improve your observation skills in forensic science

What point is the author trying to make by comparing the travel times of the first transcontinental railroad and the first transcontinental flight?

The greatest gift the sumerians gave the world was the invention of writing. the sumerians were a wealthy people. they needed some way to keep track of what they owned. they began drawing pictures. they used a reed as a pen. they drew on soft pieces of clay. the soft clay was then dried in the sun. the tablet became a permanent record. later, the sumerian drawings changed into wedge-shaped symbols. this kind of writing is called cuneiform. by putting symbols together, the sumerians could write entire sentences.

Which statement is true of the antagonist of a character vs. nature conflict? the antagonist is generally more powerful than the protagonist. the antagonist is a person or personified object. the antagonist and the protagonist have the same values. the antagonist is always difficult to fletermine.