Indeed, It is a progestin
The older the Earth's crust, the denser it is.
If a planet exists near a distant star, the star may have a very slight back and forth motion.
Explanation:
Woody plants, such as trees, tend to have more genetic diversity, on the whole, than vascular plants, such as grasses. Part of the diversity is due to the size of each species' geographic range and how far they can move their genetic information, for example through wind pollination or animal seed dispersers
