Točno: ph value is a unit of measurement., Buffers tell if water is acidic, neutral or alkaline., Alkaline water causes skin irritation., Netočno: PH tells about the amount of water we should drink., ph meter measures pollution., Acidic water is safe to drink.,

Табела

Визуелни стил

Поставке

Промени шаблон

Врати аутоматски сачувано: ?