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seesaw I am disappointed in you. quarks are particles which make the basic atomic particles.they cannot exist by themselves and have a charge of + or- which means they must combine to form a hadron which has an interger value. you can read this in any introductory text

then i hope you teach your children well

an electron is a detectable particle made up of quarks held together by gluons. does that help?

Go back to school

Careful lucaspa, evidence of organic materials and possibly traces of dead bacteria have been found in chondrites and other carbonaceous meteorites

AS to your answer about the geolgic column,have you any knowledge about pre cambrian or cambrian rocks. If not then that part of your answer is a load of rubbish

A bird dies and falls into a still pond eventually sinks and becomes covered in mud and silt.over years it become buried. in china there are loess deposits a thousand metres thick so Judge it is possible

why wasn't in the science news.has censorship started

Mothballs??

I amazed at the the number of times the fact that a person has a Phd is used as definite proof.If you come up with a few DSc I would instantly respect them as they are only given by peer approval after decades of work

I would like to see you take arisk and put your full ideas down on evolution and let people have a look at the process.Do not challenge me to do the the same thing as I profess no great knowledge of the subject

About specialisation in a particular area.As an undergraduate at university you do not study your particular subject but are required to show competence in areas such as physics,maths chemistry.once you graduate the specialisation comes in and that is where you show an understanding of a...

There is no reason to fear death either you will catch up with old friends or you wont know.

SO you're trying to upset me now sniper. Best of luck and what a waste of time

I missed one,chrysoprase,part of the chalcedony series;probably the most valuable. used as an ornamental gem as well as a building stone.

sardonyx- usually referred to as sard and onyx.ornamental stones sardius- probably an ornamental stone similar to sard chrysolite- commonly called peridot.intoduced to europe by the crusaders. used for ecclastical purposes-semi precious beryl-may be called a precious stone topaz-some forms...

Not statistics but facts.Haven't you heard of the expression "lies,****** lies, and statistics

Jasper and chalcedony are not classed as precious stones.

Thank you for your comments, nothing better than being forewarned.