Discussion»Questions»Environment» Where did all the earth come from on our planet that enabled all plant life to grow and later all animal and human life to spring from .?
Where did all the earth come from on our planet that enabled all plant life to grow and later all animal and human life to spring from .?
If our planet was formed from molton rock, where did all the plant life ,vegetation come from first to begin its life as part of a food chain to proved sustenance for all other vegetarians and Car'niverious animals/ life forms to feed on ?
I would imagine the quantrillions of tiny creatures inhabiting puddles of water living and dying would build up some kind of muck over millions of years that eventually created some form of soil for primitive plant life begin to take root.
There are only theories about how the initial life-forms first began. In other words...nobody really knows. Some say God did it. Some say alien life from comets. Check out this Wiki article.
Exactly papa....Without mountain ranges to make the clouds drop their water ,all human and animal life and even vegetation would be so much different...
Life is thought to have begun in the sea, as microbes able to thrive in an environment that would be now extremely toxic. Eventually, photosynthesising algae developed, breaking the atmosphere's abundant carbon-dioxide to form its own carbon-based protein, and releasing oxygen.
Once life (at first still microbial or algae) could live on dry land, it would take its part in chemically-weathering the rocks - limited at the time mainly to igneous rock and their weathering derivatives: sand, sandstone and clay. (Sand for example, is grains of quartz, common to all igneous rocks even if the deposits of sand we see now have been transported by wind, sea or rivers far from their source.)
When these early plants died they would have decomposed into that weathering detritus to form humus - and this process still works today, which is partly why for example, freshly-exposed rock faces in new road cuttings become vegetated so rapidly.
Kittigate 