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.
Glacier Advance and Retreat. 1  This is the upper region of the glacier. 2  Water seeps through accumulated snow and gradually forms horizontal ice lenses and vertical glands.. 3  Eventually, the whole mass compresses into a deep bed of dense ice. 4  The ice flows like a conveyor belt driven by gravity and ever mounting snows.