A: Flowering of onions can be caused by several things, usually temperature fluctuation. An onion is classed as a biennial which means it usually takes two years to go from seed to seed. However, this condition is triggered by temperatures.
Under what conditions will the front of a glacier remain stationary? Glacial fronts remain stationary when melting and snow accumulation are equal. Glacial fronts remain stationary when friction exceeds gravity forces. Glacial fronts remain stationary when melting and snow accumulation are unequal. Glacial fronts remain stationary when gravity forces exceed friction.
The debris can also be deposited under and along the sides of glaciers. When glaciers retreat back, or disappear completely, these mounds of deposited debris are left behind to create landscape shapes as unique and interesting as those caused by glacier erosion. Go back to this Glaciers online photo glossary and look up the land features of glacial deposition listed below.