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Signs of liquid water on the earth date back approximately 4.5 billion years.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoThat depends on what religion you are a part of.
some say 2000 years.
Some say 2,000,000,000 years.
Some say forever.
who knows!?
Wiki User
∙ 10y agoSince before there was liquid water on the surface.
So a long long time as liquid water happened before any life lived here
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How long does it take water to get hot in a gas hot water heater that has been shutoff for several months?
15 minutes to half an hour.
Why are plane vapour trails white not black?
I believe it's a combination of fuel exhaust and rapid compression of the moisture in the atmosphere due to the speed of the plane.ANSWER:It is from the hot exaust from the airplanes engines hitting the low pressure cold air in the upper atmosphere. It causes condensation and makes a cirrus cloud in a long line behind the plane. AnswerWhat is happening is that a combustion byproduct (either of a jet or piston engine), water, is condensing. Maybe even freezing. After all, atmospheric conditions up high usually include very cold air. When conditions are right, the condensate trail can be seen forming a short distance behind the plane. That's not due to compression. When we "see our breath" on a cold day, we are seeing the water vapor in our breath cooling and condensing.
How long will it take a 40 gallon hot water heater to fill up?
depends on water pressure, but it should completely fill in 15-20 minutes. the water should be hot in another 20-25 minutes if it has been run completely empty.
What happens to anything that sits in water long enough?
what happens to things that sit in water for a long time?
Equipment needed in a mine?
water, long boots water
How long does ground level ozone last in the atmosphere?
A few hours. The half-life of ozone is dependent on temperature and water vapor, increases of either will shorten its lifespan.
How long has hydrogen been around?
Henry Cavendish, a young English chemist, discovered that hydrogen is a separate substance in 1766. It was also discovered that hydrogen is found naturally in the atmosphere, and when hydrogen is burned it produces water vapor
What is the difference between humidity and saturation?
In nature, air is known to contain water vapor in itself. When the water vapor condenses, or turns into liquid water, there is a very high chance of precipitation. The dew point temperature is the temperature at which the water vapor in air condenses into a liquid. When air is at the dew point temperature, a cloud begins to form. Relative humidity is a long term that simply means is how full of water is air. Air can only hold so much water vapor, and when air is full of it, it is "saturated." When there is no water vapor in the air, there is 0% humidity. When air is full of water vapor and can't hold anymore, there is 100% humidity.
Why does water in the rivers not evaporate at 100 C?
I will be astonished if you show me a river at 100 degrees Celsius in which the water is not actually boiling, let alone evaporating. Perhaps you mean: why does water in rivers evaporate at temperatures below 100 degrees Celsius. To which the answer is: water has a finite vapor pressure at every temperature; if that vapor pressure exceeds the partial pressure of water vapor in the atmosphere above the water, some of the water will evaporate until the partial pressure is equal to the vapor pressure. Even ice evaporates. Make some ice and leave it in your freezer for a long time. The ice cubes will shrink.
How long have thunderstorms been around?
Thunderstorms have likely been around for as long as Earth has been cool enough to support liquid water in its atmosphere, which is more than 4 billion years.
How long does it take for water vapor to evaporate?
This depends on many factors.
What does evaporation of the sea water do to the hurricane?
Evaporation of sea water does absolutely nothing for a hurricane except provide water vapor. When the water vapor turns back to water in the form of rain it gives off heat. Hurricanes are massive heat engines. As long as they have water vapor to turn into heat they can continue blowing along. Without water vapor, the hurricane has no source of heat.
How long does an ozone molecule last in the upper atmosphere?
Seconds to months, depending on if the Sun is shining directly, the temperature, how "old" it is, and how many ozone scavengers (contaminants, such as water vapor and free chlorine or bromine atoms) are present.
Do the percentages of gases in your atmosphere change?
Over long periods of time the concentrations of some gasses such as oxygen and carbon dioxide do change. Water vapor is even more variable, often changing on a daily or hourly basis.
What is another word for evaporating water which is 5 letters long?
steam, vapor
Why does water vapor decrease?
There is not less water vapour in the atmosphere. In fact, as the earth warms, the warm air is able to hold more water vapour. Water vapour is a greenhouse gas, so the air gets warmer. So it can hold more water vapour. And so on. This is one of what is called the "positive feedbacks" of global warming!
How was the ocean formed?
God created the ocean.Some of it would have come from the ice in meteorites.____________________________________When the earth was very young (~4.5 billion years ago), the surface and proto-atmosphere were still very hot, hence no liquid water could form. At some point the proto-atmosphere cooled down enough that liquid water began to condense (from atmospheric water vapor) into clouds, then rain, then accumulations on the surface. This accumulation onto a formerly dry planet became what we now think of as "the ocean." Now, where did all that water VAPOR come from, you ask? Probably from the interaction of (a) oxygen (or oxide minerals) with (b) hydrogen gas escaping from the solid earth into the proto-atmosphere. But at least a little of the water vapor probably came directly from water ice contained in the space rocks that had long ago congealed into planet earth.
