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.
Frost front refers to the varying position of the frost line during seasonal periods of freezing and thawing.lternatively, in Arctic and Antarctic locations the freezing depth is so deep that it becomes year-round permafrost, and the term  thaw depth  is used instead. Finally, in tropical regions, frost line may refer to the vertical geographic elevation below which frost does not occur.