true
Archaebacteria
Cubit is the Primitive unit of length equivalent to a span of the forearm.
Prokaryotic.
It can possibly make a primitive glue if mixed with the right things.
Fire, primitive tools, and the wheel will be on the list of contenders.
Mainly by photosythesis that converted the CO2 in the poisonous early atmosphere, into oxygen.
Yes. The air is never clean.
free oxygen
There was an ozone atmosphere on primitive Earth, but not an ozone layer which was formed further on. The primitive atmosphere on the surface of the Earth mostly composed by ozone was pushed upwards by the oxygen formed by dead organisms. That primitive ozone atmosphere on the surface of the Earth protected the forming microorganisms from the UV radiation. JamesWest09
Hydrogen,methadane,water vapor.
Carbon, Oxygen, Nitrogen, Hydrogen
Oxygen
Hydrogen,mathane ammonia and water vapor.
Yes they are, there poison is similar to rattlesnake but there so primitive that a bite would just cause swelling and irritation
Oxygen
As opposed to today's atmosphere, the Earth's early atmosphere would have been quite impossible for human life to thrive in. Today the atmosphere consists primarily of Nitrogen, Oxygen, and Carbon Dioxide, but early Earth's first atmosphere was probably made of Hydrogen and Helium.
As opposed to today's atmosphere, the Earth's early atmosphere would have been quite impossible for human life to thrive in. Today the atmosphere consists primarily of Nitrogen, Oxygen, and Carbon Dioxide, but early Earth's first atmosphere was probably made of Hydrogen and Helium.