before humans were on earth.
Yes, if propane escapes into the atmosphere it will be a greenhouse gas. Propane is a by-product of natural gas and petroleum refining. It is a fossil fuel and releases carbon dioxide when burnt.
The earth formed around 4.2 billion years ago, but it would have been too hot for water to liquidize at that point. I think around 3.8 billion years ago, but this is easy to look up online.
few days ago
Galaxies began forming around 13.6 billion years ago, not long after the Big Bang that created the universe. Over time, gravity caused matter to clump together, eventually forming the galaxies we observe today.
The first ancient Olympic Games were held in 776 BC in Olympia, Greece. The modern Olympic Games were revived by Pierre de Coubertin in 1896 in Athens, Greece.
the fossil fuel created is coal
A Long Time Ago was created in 1991.
Back Long Ago was created in 1969.
Candles Long Ago was created in 1994.
So Long Ago was created in 1983.
On a Tuesday in Amsterdam Long Ago was created in 2008.
Croatian Tales of Long Ago was created in 1916.
So Long Ago the Garden was created in 1973.
Wood should be classed as Biomass, as it has grown and been cut for fuel within a time span of probably 100 years. Fossil fuel is that which has been created from vegetation that grew millions of years ago. The burning of biomass is not considered to add CO2 to the atmosphere, as it absorbed a similar amount during growth, in recent history.
It Should've Happened a Long Time Ago was created in 1985.
Heart Beats of Long Ago was created on 1911-02-06.
A Long Time Ago - album - was created on 1999-10-19.