Which of the following is not a property of an acid? reacts with metals bitter taste reacts with carbonate turns litmus paper red

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

Suppose that f : rn → rm and that a ∈ k, where k is a connected subset of rn . suppose further that for each x ∈ k there exists a δx > 0 such that f(x) = f(y) for all y ∈ bδx (x). prove that f is constant on k; that is, f(x) = f(a) for all x ∈ k

Using gravity, an elephant can pull a mouse towards it from the ground. true or false explain why. will give brainliest if answered fast and the best explanation