Context: Crevasses can form in several different ways. Transverse crevasses are transverse to flow and form where steeper slopes cause a glacier to accelerate. Longitudinal crevasses form semi-parallel to flow where a glacier expands laterally. Marginal crevasses form from the edge of the glacier, due to the reduction in speed caused by friction of the valley walls. Marginal crevasses are usually largely transverse to flow. Moving glacier ice can sometimes separate from stagnant ice above, forming a bergschrund. Bergschrunds resemble crevasses but are singular features at a glacier's margins.

Question: Which crevasses form on the edge of the glacier?
Answer: Marginal crevasses

Question: Why do marginal crevasses form on the edge of a glacier?
Answer: reduction in speed caused by friction of the valley walls

Question: What do bergschrunds resemble?
Answer: crevasses

Question: How are bergschrunds different than crevasses?
Answer: singular features at a glacier's margins

Question: Where do transverse crevasses form?
Answer: where steeper slopes cause a glacier to accelerate

Question: What kind of crevasses form where steep slopes cause glaciers to deccelerate?
Answer: Unanswerable

Question: What kind of crevasses form where glaciers contract laterally?
Answer: Unanswerable

Question: What kind of crevasses form at the edge of a glacier due to an increase in speed?
Answer: Unanswerable

Question: What is formed when moving ice seperates from sragnant ice below?
Answer: Unanswerable

Question: What margins to crevasses form at?
Answer: Unanswerable