Answer:
No it is not a physics because in this there is about classification of element so it is in chemistry that's why it is not physics.
The salt makes it rise and
I think that the empirical formula is mgcl2
The right answer for the question that is being asked and shown above is that: "where plants, animals, the landscape and the climate are all independent of each other." An ecosystem is a geographical area <span>where plants, animals, the landscape and the climate are all independent of each other.</span>
