All Cnidarians are symmetrical and live in marine habitats. Cnidarians have a common opening used for feeding as well as
expelling waste. They absorb oxygen from the water through the means of
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Life science

the answer is a) a shiprock was formed by igneous process

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.