Jesse is studying a new device that consists of a sealed plastic bag that contains two substances separated by a thin membrane. When the device is struck, the membrane breaks and the two substances mix within the plastic bag. Jesse measures the temperature of the device before and after striking it. The results are shown in the table. Which problem could be solved by using this device?

A. The need for astronauts to cook food in outer space.

B. The need to keep meat products cold during shipping.

C. The need to keep skiers warm when the weather is very cold.

D. The need for campers to generate electricity in the wilderness.

Which type of conflict does della face in o. henry’s “the gift of the magi”? a. character versus society b. character versus machine c. character versus character d. character versus nature

79 one theme in stowe’s uncle tom’s cabin is a)circle of lifeb)true christianityc)american ideals and realityd)families destroyed by slavery

Read the passage from sugar changed the world. sugar is different from honey. it offers a stronger sweet flavor, and like steel or plastic, it had to be invented. in the age of sugar, europeans bought a product made thousands of miles away that was less expensive than the honey from down the road. that was possible only because sugar set people in motion all across the world—millions of them as slaves, in chains; a few in search of their fortunes. a perfect taste made possible by the most brutal labor: that is the dark story of sugar. how does the comparison of sugar to honey reveal the authors’ purpose? it persuades readers that sugar tastes better than honey. it informs readers that there is a connection between slavery and sugar. it informs readers that honey had a major impact on society. it persuades readers that sugar is as important an invention as steel.