Chemical Weathering. Chemical weathering takes place in almost all types of rocks. Smaller rocks are more susceptible, however, because they have a greater amount of surface area. Chemical reactions break down the bonds holding the rocks together, causing them to fall apart, forming smaller and smaller pieces.
Autos generally are ready to harvest sooner than photoperiod. Most autos are ready to harvest 65-90 days after being sprouted from seed. Some super autos have been bred to grow very big and can take up to 100 days before harvest.
Confidence votes 40.5K. That depends on the type of vegetable, but most will germinate in within a few days to up to two weeks. Seeds like carrot, some herbs, parsnips and celery take up to three weeks. Time to harvest also varies but between 8-14 weeks is a common time from sowing to harvest.