Your comet idea for water does not work. Comets are like bombs. Remember what happened to Jupiter a few years ago? One hole blown into Jupiter from a comet "fragment" was big enough to fit the earth inside it.
Besides, like creation you cannot provide any observation which makes it all speculation.
On the atmosphere. Which weighs more?
1) Dry air?
2) Moist air?
In water, according to scuba books. Every 33 feet you descend equal 1 atmosphere. Now, if the air in the atmosphere weighed that much we would all be crushed. So if water weighs more, then so does moist air.
Rain falls out of the air because of what? It weighs more. So when it condensates it falls.
Does air have weight? At sea level the weight of the atmosphere causes a little over 14 psi. You also get around 14 psi in 33 feet of water.
Subduction on the scale that is needed for things to work the way old earthers and evolutionists need it to. Would also mean that the whole earth's crust recycles itself every so many years. Basically, subduction on this level is a work around for evolution and old earth problems.
One more thing. What happens to oil and gas deposits that go through subduction on the level evolutionists and old earthers claim that it does? There are oil and gas deposits under the oceans, right? So what happens to them when they get sucked into the "HOT" upper mantle? Hear any underground bombs go off lately? One spark and:
So what do you think will happen when gas and oil gets heated way beyond explosion temps during subduction? Also, because of subduction there should be no oil or gas deposits left because they all got sucked into the upper mantle. But that is not what we find now do we?
Side note: I notice you are trying to make this personal with comments such as these:
After dismissing plate tectonics as lacking a mechanism Ikester posts:-
Then Ikester pastes a passage from:-
Then he goes on:-
If your intent is to entertain the lurkers, or try to get on my nerves by making the debate more personal. I will consider you a time waster. Debate the subject without the personal comments.
I can also say: Keith C thinks that air has more weight than water and responds...
Now what would be my intent with a post like that? Did I prove something scientifically, or am I taking it personally and getting back at you? Or better yet. Maybe I cannot debunk what's being said so a comment like this is needed? Maybe that's why you do it?
Couple of problems with what you wrote here...
1. yes, the comet made quite a hole in jupiter, but then, jupiter isnt solid like the earth. so it rally cant be compared directly. We have been hit by some very big asteroids, and the earth stays intact. comets vary tremendously in size anyway.
2. if greater air pressure would crush us, why doesnt 14 psi? You know its coz we have the same pressure inside as out!
Same reason deep sea fish are not crushed.
In the old pressure suits, divers would go down a hundred feet or more, breathing many times normal air pressure, but the air dissolved in their blood equalized it. And of course, caused a lot of trouble if they came up too fast!
14 psi is equal to what, 896 lbs per square foot. 33 cu ft of water is over wights 2.047 lbs so maybe you are remembering your scuba book wrong.
3. i am curious why you think that subduction isnt real. have you examined the evidence? One can even find sea floor volcanoes leaning at an angle on the slope down into a subduction zone.
4. The seabed oil/ gas deposits you speak of are not under the sea bed itself.
The earth's crust is very different between sea bed and continent. The oil' / gas deposits are in continental rock, some of which is flooded with sea water.
5. No, plate tectonics does not mean that the entire crust is reworked ever so many years.
The problems you are finding here are just based on misconceptions.