Why is much of the land green, but most of the sea is not ?

Answer 1

The land in its natural state is green where and when water and nutrients (fertilizers) are in sufficient supply. In benign climate without human intervention, trees are abundant. In contrast, the open sea is deep blue because the environment favors very small plant cells (phytoplankton) and low nutrient levels. Thus, with the relatively low particle numbers the color is close to that of pure water where, as for the blue sky, scattering of blue light dominates.

Among the big questions for ecologists in the context are: Why do the herbivores (plant eaters) not graze the plants on land and in the open sea down to really low levels ? why does the land remain green? What are the effects of the great reduction of large animals on land and in the sea by human hunting on the issues? Partial answers will be presented by way of terrestrial and marine examples.

Answer 2

Because light from the sun can not penetrate very deep below the surface of the water. Where the ocean is deep you can not have plants or photosynthetic organisms simply because they need the sun to survive. Do not forget the "green" plants that you can't see with your naked eye in the oceans: the phytoplankton. Check it out on the net but I believe there are more plants in the sea than on land if you where to count the phytoplankton!

Answer 3

Land has trees, flowers, plants - Sea is water.

Answer 4

Most of the vegatation is green. The sea reflects the sunlight in various hues and has no uniform color.

Answer 5

the way light is refracted form the water is why