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 MOVEMENT OF GLACIERS IS CAUSED BY GRAVITY. The weight of the overlying layers of ice and snow push down on the lower layers of the glacier. This weight also causes grains of ice to partially melt and refreeze. As this happens, the ice grains slip over each other, and the glacier moves.