Sapphire is used as a "window" for laser beams and in focusing light in fiber optics.
an orchid mantis does or does not help mankind. which means that it doesn't help mankind but its not bad for mankind either
The plant help mankind by purifying the air by absorbing CO2 and releasing O2 during synthesis of organic compounds used by entire animal kingdom including mankind.
entertainig mankind
shelter
Calcite is used in many commercial products such as toothpaste, chewing gum, antacids, soap, glue etc.
Sapphire is commonly used in the electrical and electronics industry mostly. LED chips and most circuits will be made from sapphire.
There are a lot of things that could be done to help mankind. The invention of airplanes was a great achievement that has changed mankind.
There are many possible uses for the stone sapphire. The pretty sapphire stone can be used in jewelry for example.
she suck
made the first flag
They helped by making wok easier
nothing