Why cutaneous is best method for amphibia?

In order for this gas transfer to take place, an amphibian’s skin is damp and often slimy. Although cutaneous respiration requires less energy than breathing via lungs or gills, it can only take place at a constant rate. Most amphibians have lungs to handle respiration at a greater rate when required.

Explanation:

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."