1) Did alchemy begin to decline in the 16th
century?
Did alchemy begin to decline in the 16th or 17th century?
Alchemy began to decline in the 16th century, didn't it?
When did alchemy begin to decline?
What science began to decline in the 16th century?
2) Have people long had a lust for gold?
Have people long had a lust for gold or for silver?
People have long had a lust for gold, haven't they?
What lust have people long had for?
Who has long had a lust for gold?
3) Were ancient civilizations practicing
the art of chemistry as early as 3000 B.C?
Were ancient civilizations practicing the art of chemistry or physics as early
as 3000 B.C?
Ancient civilizations were practicing the art of chemistry as early as 3000 B.C,
weren't they?
What art were ancient civilizations practicing as early as 3000 B.C?
What civilizations were practicing the art of chemistry as early as 3000 B.C?