Diffusion. It follows the concentration gradient, moving from high to low.
1. <span>It is a salt because it is formed by the reaction of an acid and a base.
</span>2. BASE increases the concentration
500 because of the 10% rule when moving up in food chains, for example; patch of grass-200J rabbit eats some of it but doesn’t eat all - 150J the rabbit runs around for a bit and loses energy, the fox doesn’t eat all of the rabbit - 50J ( just a rough example may not be completely right but the concept of the rule is there and the energy).