20 pts and which best identifies the adverb clause? (key, the capital letters mean its underlined since i couldnt underline the words.) a. if you visit pennsylvania, take the self-guided, covered-bride tour. b. only 1,600 covered bridges exist in the world. c. covered bridges remind us of days gone by. d. the leigh valley, in eastern pennsylvania, has seven covered bridges.

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.