  In this paper, we provide a criterion for the effectiveness and ampleness of
divisors on fake quadrics. As applications, first we prove that the fake
quadric $S$ satisfies the bounded cohomology property, which is that there
exists a positive constant $c_{S}$ such that $$h^1(\CO_S(C))\leq c_S
h^0(\CO_S(C))$$ for every curve $C$ on $S$. And then we give that any fake
quadric cannot be embedded in $\mathbb P^4$. Ultimately, we get that any
simply-connected fake quadric $S$ is not a Mori dream space, and the geometric
genus $p_{g}(C)>2$ for any curve $C\subset S$.
