Stone e sewage treatment plant: o que têm em comum

1. Passo 1. Stone — é material para — Aqueduto. Aqueducts are stone arches and channels.
2. Passo 2. Aqueduto — funciona como — Sewerage. Both systems carry water by gravity through channels: one drains waste, the other supplies water; the drains of Mohenjo-daro are older than the Roman aqueducts.
3. Passo 3. Sewerage — tem como parte — Sewage treatment plant. Treatment plants.

Abrir Evothings