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What is the most common element in life forms?
The most common elements, in order, are carbon, hydrogen, oxygen, nitrogen, phosphorous, sulphur.
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What are Pennsylvania's common life forms?
deer, ants, dogs, cats, and squirrells
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What was the common form of transport in the early 1900's in Australia?
The transport back in the early 1900's in Australia were horses and carts commonly used in rural and urban areas.
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Which element is common to all life forms on earth?
By weight (mass), the answer would be Oxygen
By number of atoms, the answer would be Hydrogen
The answer could also be Carbon
Take your pick
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When and how did life form?
more specific what kind of life?