4.  How can you learn about a place before you go there?

You can learn about a  place by maps and books and what the weather is like where you are going.

You can also look on the computer or watch TV.

5.  Why is walking a good way to travel sometimes?

Walking can be good by seeing the sights and meeting other travelers, too.  Also you can see the diffrent shops and hiking.

6.  How is riding a bicycle or skateboard different from walking?

Bicycles and skateboards are different because they have wheels and walking is on foot.