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What else can I help you with?
What do many organic compounds have?
They have most of the compounds found in your body or earth
Which substance was not present in Earth's primitive atmosphere?
Oxygen was not found in the atmosphere of primitive Earth. It is so reactive that it became locked up in compounds at the time of Earths formation. These compounds were varied, but the bulk of them were mineral oxides, silicates, carbon dioxide and water. Free oxygen entered the atmosphere only after the development of blue-green algae, which produced oxygen from carbon dioxide.
Which gases were conducted in urey and miller experiments?
1. Miller and Urey's organic experiments suggested how mixtures of the organic compounds necessary for life could have arisen from simpler compounds present on a primitive earth haha i found this in our textbook, miller levines textbook :PP
What are the elements and compounds found in the Earth?
I think its fire earth gorund and water
Why is hydrogen oxygen and nitrogen found in many compounds?
They are so abundant on earth
Why do scientist say water is first found on earth?
Because that is the first place they found it. It is not the only or the first place to actually have water, but Earth is where we found it first.
Where was the first mammoth found?
They were found on Earth.
When was gold first discovered on earth and what part of the earth?
There is no way of knowing when the first discovery of was. Gold was likely found by hunter-gatherers in a number of locations, long before there were any sort of written records. A gold nugget in a stream bed or a vein in an outcrop would have easily caught a primitive human's eye.
Is hydrogen found in the earth's atmosphere?
Yes, hydrogen is found in the Earth's atmosphere, but it is present in very small amounts. It makes up about 0.00005% of the atmosphere by volume. The majority of hydrogen on Earth is found in compounds like water and hydrocarbons.
Why are neither the alkali metals or the alkaline-earth metals found uncombined in nature?
Alkali metals and alkaline-earth metals are highly reactive and easily form compounds with elements in the environment. Consequently, they are not found in their pure form in nature. Instead, they are typically found as compounds with other elements such as oxygen or sulfur.
What was the first vertebrates?
Amongst the living the most primitive vertebrate is the Hagfish.
This element is mostly found as a with a compound with uranium?
Uranium is found in the earth only in the form of compounds. Uranium is present in cca. 200 minerals.
