No it's not, they will mix and come to an intermediate temperature. Try it.
They're less dense *because* they're hotter than the air around them. How do you think a hot air balloon works, by reducing the force of gravity on the balloon?
Then why don't all clouds sink down to the ground? They're just fog up high, where the air has cooled below its dew point. Fog doesn't come down to the ground, it forms near the ground when the ground is cooler than the air above it and cools the air below it's dew point, or air masses of different temperatures and humidities flow together over the ground and cause condensation as the mixing cools the warmer, wetter air below its dew point.
No it's not true, temperature is unrelated to gravitational forces. You understand less than nothing about this and I'm done trying to convince you of anything about it, your ignorance is relentless, wilful, and inexcusable. With all the resources of the internet available to you, you persist in these delusions when you could easily verify everything I've said with a little searching. You will find no legitimate scientific references to temperature affecting gravitational forces. But no doubt you'd reject that too, 400 years worth of work by scientists and engineers all over the planet is trumped by medieval superstition in your world.
The disbeliever rejoices with his conceit.
So you give assumptions and insist on them considering that is science.
No objection to science, but the objection is to your deduction out of true science, clinging to theories not to facts: like the Evolution Theory and your claim it is true and the white race and others came from the savanna of Africa. While you and others did not witness their creation to assert this.
Before, I told you that you are stick to textbooks and refuse to consider any wrong with them, which is not the scientific way of thinking.
So no objection to 400 years and in fact much more years of scientific progress.. the weird thing is that you consider yourself correct in every detail, and revealing to others that I am against the true science, and that the Quran is against science, but this is false and is the falsehood.
Today I read an aya in the Quran 15: 22, which means:
(
And We send the winds: fertilizing to [the fruit f and the cloud g], and so We send down [rain] water from the sky h, and We give the [water] to you to drink; it is not you, [people], who store up the [water in the earth, in mountains and seas] i.)
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f When the wind passes on trees and plants, it
carries with it the pollens of the male to the female plant, so this latter will be pollenated or impregnated and the fruit will be formed.
g While about its
fertilizing effect on the cloud [formation]: the wind carries with it the dust particles, then when such particles collide with the snow particles, that are scattered in the space, such snow particles will melt to become the rain, because of these dust particles and because of the heat of the wind,.
h i.e. from the gaseous layers.
i But it is We Who store it in the earth, in the mountains and in the seas and We make to flow, out of this ‘stored’ [water], rivers and fountains and out of rivers and fountains, We give you water to drink.