Now we know that current velocity, or energy, and sediment size are correlated. High velocities only allow large grains to settle out, and only low velocities can allow for very fine grains to settle out and be deposited. So, how do graded beds form? They must represent a transition from a high to low energy current because they possess a transition from large to small grains.

Iassume the answer is 75 feet. inwards to outwards rather than outwards to inwards. probably be 75.hachures are stokes drawn in direction of the steepest slope. a series of short parallel lines drawn on a map to indicate topographic relief. it is actually called hachures on contour lines. the small marks in the center of the feature are called hachures.observe the picture attached

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