6ebbba77_Marine_habitats__principles__Living_in_the_sea
[Factor] Aspect [Living on the land] Steep hillsides funnel the winds and drain moisture quickly so that they are hard to live on. Soil won't hold on steep slopes. [Living in the sea] 
Moderately steep cliffs absorb waves and make currents move faster near them. Because the sun appears to shine from straight overhead, cliffs are not suitable for plants. So they are often rich in animals that filter the water for food. Ironically, vertical cliffs do not absorb wave energy, but bounce it back, thus providing shelter.
Marine habitats, principles
Living in the sea