True because if it were produced that people that would make it would get profit from making the product.
B levers are used to lift heavy objects, and construction is an example. :)
Archduke Franz Ferdinand was assassinated by a Serbian nationalist, 19-year-old Gavrilo Princip. This event is widely believed to have started the First World War.
It was his painting of the Baptism of christ i believe where he painted the kneeling angel and worked on some of its background.