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As plant material decays quickly it is hard to difinitively answer bet intact specimens have been collected from tar beds from crustacous period 300,000,000 bc with definate cannibis indica dna structure. One can assume that the evalution of that plant took atleast another million years.
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What else can I help you with?
When was Mars first sighted?
No one knows, for as long as people have been on the earth it has been there in the sky.
How long have hippos been around?
hippos bean around earth
How long ago has Earth been broadcasting radio signals into outer space?
Earth has been broadcasting radio signals into outer space since the late 1800's.
How long do scientists believe ATP has been around?
ATP has been used as long as there have been living things on Earth. It developed with the earliest anaerobic prokaryotic cellular life. Probably slightly more than 3 billion years, not long after the crust of the Earth first began to solidify and liquid water became available.
If earth is 24 hours a day How long has life been in place?
Life on Earth is estimated to have existed for around 3.5 billion years. This means that life has been present on Earth for a vast majority of its 24-hour "day."
How long will it take for marijuana to kill you?
There have been no cases of people dying from marijuana use.
What if male marijuana plants has been next to female plant for to long what happens?
You have baby marijuana plants
How long has archaebacteria been on earth?
how long has archaebacteria been on earth? how long has archaebacteria been on earth?
How long has marijuana been in north America?
Marijuana has been in North America since the 1700's. It was introduced by the West Indians in 1803 and has been around ever since.
How long does marijuana stay in an unborn baby?
Marijuana stays in an unborn baby's system for 60to 90 days. It has been shown that babies subjected to marijuana in the womb, have a higher intelligence level.
How many celebs died from the use of marijuana?
Nobody in the history of mankind has ever died of marijuana. Keep in mind, marijuana has been used by humans since long before the bible was written.
How long have mice been on this earth?
they have been on the earth for along time
If you get a card will it show on your resume that you have been a medical marijuana user If so how long?
yes it willl!!
How can you tell from drug test results how long my child has been using marijuana?
I don't think you can.
How long does marijuana stay in your system if you smoked for three years?
If you been smoking for 10 years but you stop for about 30 days it will clear out. it doesnt matter how long you've done just how long you have until your drug test to clear out the marijuana
How does marijuana affect Rheumatoid Arthritis?
marijuana Has long been seen as a effective pain killer and sedative so THC should make a sufferer feel better.
How long does it take to blacken lungs from smkoing marijuana?
that's an odd question . What do you mean by blackening the lungs? there has never been any cancer associated with smoking marijuana.
