Is water today the same as millions of years ago?

Answer 1

yes all water is recycled via the water cycle first evaporated from the sea and joins to form water vapour(clouds), then it condenses as raindroplets falls onto mountains a drains off into the sea via river and lakes then the process starts again

Answer 2

In theory, the water that is present on our planet today is the same water that has been here for hundreds of millions of years. It continues to be recycled through the environment over and over in a constant cycle of evaporation and condensation known as the Water Cycle. Therefore, it is quite possible that you are drinking water that was once drank by dinosaurs.

Answer 3

this could very well be the case. Water does indeed cycle globally, and for the most part the same water is passing through the trophic levels, and being evaporated and rained down.

However, organisms do break apart and/or form their own water molecules inside their cells, including us. During cellular respiration (oxidative phosphorylation) sugars are broken down and used with the help of oxygen to make chemical energy molecules (adenosine triphosphate), and H2O is formed as a by product. this is how our cells make energy. This is how the cells of most animals and plants work.

Plants also break apart water molecules during photosynthesis, and use the hydrogen and oxygen atoms, in addition to the carbon and oxygen from CO2, and produce carbohydrates. Oxygen gas is a byproduct of this reaction.

these reactions are in effect opposites.

When water boils, in addition to water vapor, some oxygen gas is liberated as water molecules are busted apart(destroyed) from the kinetic energy that is heat.

therefore, the answer is possibly, as water molecules are created and destroyed virtually every living organism on earth.

Answer 4

yes, as the water they drank, they peed out, then that evaporated into clouds, then it rained, then it was in the oceans, then in the rivers and now, 250 million years later, it's in your evian bottle :)

Answer 5

Yes, we do use the same water as dinosaurs did thousands of years ago. This is possible because water is recycled. For all we know, we may be drinking water that was exhaled by the dinosaurs.

Answer 6

There is a possibility that that is possible because the water cycle has been going on forever.

Answer 7

yes we do because of recycling

Answer 8

Probobly