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.
Steady precipitation usually persists along the boundary of a warm front. This amount of precipitation, however, depends on the amount of moisture in the air ahead of the surface front. If the warm air is relatively dry and stable, precipitation would not be likely to occur. If the air is moist and conditionally unstable, heavy precipitation could occur over a broad area.