Which of the following statements is not true about proper tire care? a. if you see a wear bar across the width of the tread while facing it, it's time to replace the tire. b. properly-inflated tires are critical to vehicle control and good gas mileage. c. tire tread depth can only be checked by a properly-trained tire expert. d. under-inflated tires experience uneven friction and heat buildup, which can lead to blowouts.

I'd say c.Tire tread depth can only be checked by a properly-trained tire expert.

This option is not true. Anyone with a tread depth gauge can check tire tread depth. A coin in your pocket can also work. You can insert the coin with the head showing. The head should always be pointing towards the tire.

For question 1, i'm a bit stuck between serif fonts or large enough type to read. serif fonts are good fonts to use because their easy to read. but you also need your type be large enough to read. if i had to say what you need to consider most important, i would say d is the answer.  for question 3, i believe the answer is d. it seems most appropriate to do that. on every page or every other page would be too much, and only on the contact page just seems inappropriate.  for question 4, it's probably a. by "color scheme" it doesn't mean just one color, but a set of colors. colors that are complimentary to each other. having too many is too distracting so it's best to limit it as much as possible, but not to the point where your website looks dull.hope this !