The answer is C- facilitated diffusion.it is a type of passive transport. In facilitated diffusion particles move from higher concentration to lower concentration. So particles move along their concentration gradients , so energy is not required.
The muscles that are grouped in between the ribs are called Intercostal
D) El Nino because EL Nina is the cooling of the water.Photosynthesis is to do with plants and Tsunami is a storm
D. because the sun grows the grass the mouse eats the grass and the snake eats the mouse...