To a reader understand the monitoring device for thermometer pills, the author uses a) a metaphor to show the cost of the device. b) a simile to compare the device to a palm pilot. c) personification to explain how the device works. d) hyperbole to stress the importance of the device.

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.