This makes no sense...distilled water has a density of 1000 kg m^3 at 4°C... Density makes no sense unless you give a volume and weight. Metals, well the density depends on which metal it is you're talking about.
Sure it does, Tonington, depends upon which system of measurements you are using. In cgs system, density of water is 1, in MKS system, it is 1000 (in British system it is 62.5). Same as density of metals is typically around 7 or 8.
It may be that you are used to only MKS system. But I got my education when they were transitioning form British to Metric system, so I am used to all kinds of systems. For a while, cgs system was the standard, then they switched to the MKS system. To say that density of water is one makes perfect sense (unless one has never heard of the cgs system). And it does not matter which metal you are talking about, they are all much heavier than water.
So? Water is essential. Carbon dioxide is not.
What has that got to do with anything? Carbon dioxide is still much heavier than water. We are discussing here which is heavier, not which is essential, that is a separate issue.
You're clueless.
Well now, we can’t all be all knowing, omniscient like you, can we?