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.
As permafrost thaws, the friction needed between the frozen and thawing permafrost regions to maintain stability disappears. On ice, you don't need a very sloped surface before you start to slip and slide . and that's exactly what happens with the permafrost and overlying land, resulting in landslides.