Why are complementary colors often used together as part of a color scheme?

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 of the following is true about louis henry sullivan

What song from imagine dragons is "that's the price you pay leave behind your heart and cast away just another product of today rather be the hunter than the prey" will mark brainliest!