4 Distinguer mélange et corps pur (2) | Rédiger une argumentation.
Sur la publicité d'une eau minérale, on peut lire :
« Une eau pure et équilibrée en minéraux ».
• Commenter ce slogan d'un point de vue scientifique.

The four giant gas points that are made primarily of lightweight elements are

15. one purpose of the tread pattern on a tire is to a reduce tire wear. b. reduce traction c. allow water to flow away from the tire. d. look impressive.

Aprisoner is forced to go into one of three rooms, but he can choose which room. the first room is ablaze with fire. the second one is rigged with explosives that will go off as soon as he enters. the third contains a pair of lions who haven't eaten in years. which room should he choose to survive?