Freeze thaw occurs on the mountain creating large chunks of rock which progress down stream. However a more logical answer would be calving,abrasion and plucking that are processes performed by a glacier removing peices of rock from the mountains. As these melt they form streams, large rocks and boulders would be left behind.
Answer:
The size, polarity, and charge of a substance will determine whether or not the substance can cross the cell membrane by diffusion. ... The lipid bilayer is much less permeable to the ion, because of its charge and larger size. As a general rule, charged molecules are much less permeable to the lipid bilayer.
13. friction. oil is slippery and reduces friction of the car engine
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Water can cushion and protects the structures of the body because of ITS BUOYANCY.
Water protects the cells and organs in the body from physical trauma by cushioning them. For instance, water cushion the brain within the skull and the fetus inside the womb.