During the annual migration from Florida to Mexico, the Ruby-Throated Hummingbird must fly 450 miles over water without stopping. One year, a hurricane swept through the migration route and killed 90% of the hummingbirds. Although 10% of the birds survived, their genetic variation has been threatened by this occurrence. What is a probable consequence for the hummingbird population?

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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d. groundwater flows through the subsoil and deposits minerals.

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.