Abicyclist is competing in a cross country race how can she use a topographic map to improve her chances of winning

A topographic map would provide information about the elevation and slope of certain areas on the course. this would allow her to anticipate more different areas in the course.

What this basically means is that before she will goes onto to high elevation areas, she will save energy by bicycling slower. And she will only know which areas are higher if she has a topographic map

You will hear a hissing sound because of the carbon dioxide escaping the can or bottle

Ireally don’t know