What did Hershey develop during World War II?

Help me with this pls

Read the passage: canines may not be the deepest thinkers in the world. but perhaps that's for the best. the life of a dog—sitting alone all day, waiting for everyone to come home—can be pretty boring. super-smart animals would probably get totally stressed out, says university of pennsylvania researcher james serpell. look at it this way: if dogs were any smarter, they probably wouldn't choose to hang around with us. which best describes the tone of the passage?

What does water to a paste meaning?

Which piece of information must be included with the • graphic? its publisher and date of publication khaled's full name and grade in school several sentences describing the chart a photo to illustrate the chart