The function $$f\left( x \right) = {x^3} - 6{x^2} + 9x + 25$$ has

The function $$f\left( x \right) = \left| {x + 1} \right|$$ on the interval $$\left[ { - 2,0} \right]$$ is __________.

The void ratio of a soil sample can exceed unity.

Aeolian Soils are