9.Pluto- 39.4 AU why do astronomers not measure the distances to stars in kilometers? distance to stars are so great that the number are too large to work with easily.
Some seeds can last for three to four years, such as: 1  asparagus. 2  beans. 3  broccoli. 4  carrots. 5  celery. 6  leeks. 7  peas. 8  spinach.
Depending on the type of seed, and the environment in which it is stored, seeds can last anywhere from 1-10 years or more before the germination rates will decline. Tomato and cucumber seeds typically can last up to 10 years, while parsnip seeds will start to decline after only a year.