  In this work, we generalize some results on scaling limits of stochastic
transport equations on torus, developed recently by Flandoli, Galeati and Luo,
to manifolds. We consider the stochastic transport equations driven by colored
space-time noise(smooth in space, white in time) on a compact Riemannian
manifold without boundary. By tuning the noises properly, we obtain different
scaling limits depending on the initial data. With space white noise as initial
data, the solutions converge in distribution to the solution of a stochastic
heat equation with additive noise. With regular initial data, the solutions of
transport equation converge to the solution of the deterministic heat equation,
accompanied by qualitative estimates on the convergence rate. We can get the
same rate as on torus in the estimates, but at the cost of either imposing
stronger bounds on the initial data or sacrificing some regularity.
