As an airplane moves forward, the shape of its wings causes a difference in pressure below and above the wings. What is the effect of this difference in pressure? A) A downward force is created
B) the airplane speeds up
C) an upward force is created
D) the airplane slows down

The greatest gift the sumerians gave the world was the invention of writing. the sumerians were 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 word best describes the mood in this sentence? lucia was aglow as she bounced into the room with stories about her summer vacation.

In describing jimmy wells as the truest, most loyal fellow, what tone is conveyed