Sentences with phrase «by natural processes»

The device is inspired by the natural process of photosynthesis, in which plants produce energy by tapping on sunlight to separate water into hydrogen and oxygen.

It's a transition — and scientists are still trying to understand the magnitude of global climate change caused by humans in recent history compared to that caused by natural processes over the ages.

The results have been plagued by ambiguity, especially in the light of growing evidence that organic molecules can be formed by natural processes that do not involve life.

The cost for carbon sequestration with wood burial is low because CO2 is removed from the atmosphere by the natural process of photosynthesis at little cost.

The device is inspired by the natural process of photosynthesis, in which plants produce energy by tapping on sunlight to separate water into hydrogen and oxygen.

The flux, or movement, of carbon between the atmosphere and the earth's land and oceans is dominated by natural processes like plant photosynthesis.

However, emissions and removal of CO2 by these natural processes tend to balance.

Large quantities of mercury are also released by natural processes such as volcanic eruptions, forest fires and erosion.

The vast bulk of this is produced by the natural process of evaporation of water from the sea.

Free radicals are created by natural processes in the body in addition to outside pollutants, so our cells are always in need of antioxidants like glutathione to maintain optimal health.

While this break was driven by natural processes, it reflects concerns in the region.

The simulations also suggest that the removal of excess carbon dioxide from the atmosphere by natural processes on land and in the ocean will become less efficient as the planet warms.

Aluminum alloys do not form easily by natural processes, because the element reacts with oxygen so readily.

The most common definition is that renewable energy is from an energy resource that is replaced rapidly by a natural process such as power generated from the sun or from the wind.

Provide hard, safe chew toys that allow your dog's teeth to be cleaned by the natural process of chewing.

The most famous skeleton is that of a young girl, the bones of which have been completely covered by the natural processes of the cave, leaving them with a sparkling appearance.

He is fascinated by natural processes and the phenomena in which human existence is anchored.

Right now, we pour about twice as much CO2 into the atmospheric tub than is removed on net by natural processes.

Such changes can be brought about by natural processes or man - made problems.

They are also formed in minor quantities by natural processes such as forest fires and volcanoes.

This variation may be caused by both natural processes and human activity.

So is the human growth hormone available in supplements created by some natural process or is it synthetic?

Carl Sagan described the theory of evolution in his final book as the doctrine that «human beings (and all the other species) have slowly evolved by natural processes from a succession of more ancient beings with no divine intervention needed along the way.»

Pure maple syrup lists only «pure maple syrup» under ingredients and is made by a natural process of extracting the sap from maple trees, evaporating off excess water and filtering to remove impurities.

This results in the hookworm losing its grip in the intestinal wall and is removed from your pet's system by the natural process.

The long time scale for this recovery arises because ozone depleting gases such as chlorofluorocarbons are only removed from the atmosphere by natural processes at very slow rates.

Holland wrote: «Since pollution means disaster to the affected species, the only satisfactory course of action is to prevent it — to maintain the addition of foreign matter at such levels that it can be diluted, assimilated or destroyed by natural processes — to protect man's environment from man.»

It is important to remember that temperature change due to CO2 emissions is essentially irreversible for several hundred years because this CO2 is removed from the atmosphere only very slowly by natural processes.»

Remarkable and significant as is the emergence of self - conscious persons by natural processes from the original «hot big bang» from which the universe has expanded over the last 10 - 20 thousand million years, this must not be allowed to obscure another fact about humanity, namely its relatively recent arrival in the universe, even on a time - scale of the history of the Earth.

It may be possible shortly for man to produce life in the laboratory that is constituted of the same biochemical elements as that which has evolved over billions of years by natural processes.

As for the «dinosaurs,» I think it is possible that they where on the Globe during the time of Adam to Noah, when it was only a few people on Earth, then wiped out by the flood or maybe by natural processes (including expedited fossilizing) that science has not discovered yet!

Something was reformed by natural processes into something else.

3 Last year a team of scientists led by Kurt Zenz House, a doctoral candidate at Harvard University, proposed something they call engineered weathering, inspired by a natural process in which slightly acidic freshwater is neutralized by exposure to alkalizing minerals.

These molecular fragments are spawned by natural processes, disease, and a number of environmental insults — including overexposure to the sun.

According to CNBC, «the pollution has combined with ozone released by natural processes to cancel out many of the gains from stricter pollution controls enacted in the United States since 2005.»

In addition to anthropogenic particles, geogenic dust is transported to Beijing from arid regions by natural processes.

It is absolutely surreal to be surrounded by curving walls, made entirely by natural processes.

Actun Tunichil Muknal is a Maya archaeological site famous for «The Crystal Maiden», the skeleton of a teenage girl whose bones which have been completely calcified by the natural processes of the cave.

Here you'll find ceramic pots and crystallised skeletons, preserved by the natural processes of the cave for over 1,400 years.

In other words, they have an archetypal look of the patterns generated by natural processes on the micro and macro biotic scales.