What is the line of gravity? a measure of how much matter, or weight and shape, are in an object

a line that is brought forward during movement

a line marking the stability point

a line that runs straight through the center of gravity and down to where an object is supported

Spencer's blog claims that national parks are the best vacation destinations. which evidence is best for developing his claim? a personal account from a park visitor who describes positive adventures at grand canyon and yellowstone parks an interview with a travel agent who advertises cruises, eco-tours, and whitewater rafting trips a chart that compares the number of national parks in the eastern united states to that in the western states a study that proves adults who take yearly vacations have lower blood pressure than those who do not

Which activity is considered low-impact?

What category does punk rock music fall under?