 
 <prompt> ```why do cracks form in the glacier Given the previous question, write a context that contains the answer. It can be 1 - 20 sentences. Context:```
Translate the text above to Nigerian pidgin. If there is programming code in it, leave as is. Do not add any extra statement in your response:

```why cracks dey form for glacier Given di previous question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context:``` <response>: ```Di top 50 m (160 ft) of a glacier dey rigid because dem dey under low pressure. Dis upper section dey known as di fracture zone and e dey move mostly as one unit over di plastically flowing lower section. Wen glacier dey move through irregular terrain, cracks wey dem dey call crevasses dey develop for di fracture zone. Crevasses dey form sake of differences in glacier velocity. If two rigid sections of a glacier dey move at different speeds and directions, shear forces dey cause dem to break apart, opening a crevasse. Crevasses dey seldom pass 46 m (150 ft) deep but for some cases fit reach 300 m (1,000 ft) or even deeper. Beneath dis point, di plasticity of di ice dey too much for cracks to form. Intersecting crevasses fit create isolated peaks for di ice, wey dem dey call seracs.``` 