Question

is
a hard
Quartz the crystalline form
of Silicon
dioxide (sio2) It is
brittle and colourless
Solid. When quartz is heated
above its
melting point (about
16000) and cooled rapidly
amorphous solid called
quartz glass result- Give reason?
an​

Answer 1

Answer:

The first Olympic Games took place in the 8th century B.C. in Olympia, Greece. ... However, the athletic tradition was resurrected about 1500 years later: The first modern Olympics were held in 1896 in Greece. 3 3. In ancient Greece, athletes didn't worry about sponsorship, protection, or fashion – they competed naked.