A soil has water weight 10 N and dry solid weight 100 N. Water content is

Why is this the answer?

Gravimetric water content w = (Ww / Ws) × 100%, where Ww is weight of water and Ws is weight of dry soil. w = (10 / 100) × 100 = 10.0%. Water content is always expressed as a percentage of dry weight. Natural soils range from ~5% (arid) to >100% (soft clays).

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