How did microbes make Earth habitable?

How did microbes make Earth habitable?
Image courtesy of MorgueFile
Date:1 February 2013 Tags:, ,

How did microbes make Earth habitable?

The one thing that most people think they know about natural navigation is not true: moss doesn’t only grow on the south side of trees (in the southern hemisphere). Moss primarily seeks out bark with shallow gradients and coarse textures that can trap water. But trees can help travellers determine direction. In the southern hemisphere, the branches of isolated deciduous trees grow denser on the northern side, which faces the Sun, so trees appear heavier on that side. Also, since tree limbs grow towards sunlight, the branches on the northern side tend to grow horizontally, whereas the branches on the southern side grow slightly upward. Pre-vailing wind, most often from southeast to northwest in the Western Cape, for instance, also bends the tops of trees to point northwest.

Latest Issue :

Jan-February 2022