Water tower e petri dish: o que têm em comum

1. Passo 1. Water tower — faz parte de — Plumbing. Maintaining pressure.
2. Passo 2. Plumbing — funciona como — Aqueduto. An aqueduct brings water to a city, plumbing distributes it inside; Minoan pipes are older than the Roman aqueducts.
3. Passo 3. 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.
4. Passo 4. Sewerage — tem como parte — Sewage treatment plant. Treatment plants.
5. Passo 5. Sewage treatment plant — utiliza — Culture medium (agar). Waste water is cleaned by activated sludge — bacteria.
6. Passo 6. Culture medium (agar) — utiliza — Petri dish. Agar in dishes.

Abrir Evothings