true
Plutonium was first produced in 1940 and identified from atoms resulting from human activity. In 1971, it was identified as naturally occurring in trace amounts.
- Made in the shoot apical meristem and travels downward in the phloem
Minerals are required to be naturally occurring. Synthetic diamonds are not.
It can be naturally ocurring, but is typically synthesized in a laboratory for commercial sale. It is synthesized from natural gas and nitrogen from the air.
Naturally produced in the intestines of of many mammals. Methane is the reason you can light your farts.
No, they do occur naturally.
no. platinum occurs naturally, but can me made in the laboratory
from naturally ocurring or laboratory-made elements, it is possible to make hundreds of thousands of_______________
Plutonium was first produced in 1940 and identified from atoms resulting from human activity. In 1971, it was identified as naturally occurring in trace amounts.
No its naturally produced
- Made in the shoot apical meristem and travels downward in the phloem
your momma is rachet
It is not know to be naturally produced but is rather an man-made chemical synthesised in labs.
Minerals are required to be naturally occurring. Synthetic diamonds are not.
It is a synthetically made version of human erythropoietin that is made naturally in the body and has the same effect on bone marrow.
No, Caffeine is not man made. Caffeine is naturally produced by several plants including coffee, guarana, yerba mate, and cacao. Its purpose is to dissuade predators of the plant, however humans are immune to this toxin. This is not always the case, however. Though caffeine is naturally produced by many plants, it is ALSO produced artificially, man-made.
It can be naturally ocurring, but is typically synthesized in a laboratory for commercial sale. It is synthesized from natural gas and nitrogen from the air.