Sodium hydroxide is a manmade substance.
Not all but most. there is no system, manmade or natural, that is 100% efficent.
i don't know is it man made or natural?
A certified gemologist can determine whether your diamond is a natural diamond or a lab-created diamond.
Potassium Cyanide, because K is the symbol for Potassium and CN represents cyanide.
it is manmade
Manmade
manmade
we are all natural because we weren't made in a factory we were made natural.Things that are made in factorys are manmade we are not manmade we are natural. Katrina LaChance- Bermuda138
Cyanide is natural
that manmade is what human makes natural is somthing earth makes
natural
snowflakes are natural
NO it is natural!
no
Natural
Silk is natural. It is produced by silkworms.