A saturated sand sample has dry unit weight of 18 $$kN/m^3$$ and a specific gravity of 2.65. If $$\gamma_w$$ = 10 $$kN/m^3$$, the water content of the soil is _____%.

For sand of uniform spherical particles, the void ratio in the loosest and the densest states are ________ and ________ respectively.

When the product of rock weathering is not transported as sediment but remains in place, is called

A tropical cyclone in a northern hemisphere is a wind stream with