The data here indicates the number of species of amphibians that are affected by several factors in their environments. Which human action
would most greatly reduce the number of amphibian special threatened for extinction?
A) reducing the use of chemical pesticides

B)preserving habitats and preventing further habitat
loss

C)preventing the movement of invasive and nonnative
species across the globe

D)investing in research to identify infectious disease
sources and prevention

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c. heat from the poles back down towards the equator.

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.