Plant three to five papaya seeds in each pot, about 1 inch deep and 3 or more inches apart from one another. Set the pots out in an area that receives full sunlight. Wait two to five weeks for the seeds to germinate. Choose your outdoor planting site, which should be in full sunlight and in a warm area of the yard.
The two horizontal lines in the lower half of the plot represent two criteria for specifying the lifetime of a tire. The lower curve represents 2/32, the legal limit in most states for minimum acceptable tread depth and the height of tread wear indicators built into the tire. This depth corresponds to the common Lincoln head penny test. The second line represents 4/32, a depth that may represent a safer minimum. The first plot shows the actual measurements of the tread thickness. I've had the tires rotated twice and there's an obvious change in the wear rate at each rotation.
How to check your tire tread depth. Tire tread depth gauges are a fast and easy way for you to know for sure if your tires are safe or if they need to be replaced. Find the shallowest groove of the tread and insert the pin of the gauge until the base is flush with the tire.