Which of the following is not true about the pioneering work of the wright brothers? a. they learned much about building flying machines from their work on bicycles. b. they flew gliders from the sand dunes of dayton, ohio. c. they developed blunt, rounded front edges for the wings of their gliders. d. they built a man-sized, engine-powered flying machine.

They flew gliders from the sand dunes of Dayton, Ohio

Explanation:

During the winter of 1902, the Wright brothers with the assistance of their mechanic designed a gasoline engine light that was enough and powerful to propel an airplane. The Wright brothers also designed the first airplane propellers and also built a new and powered aircraft.

The Wright brothers learned about building flying machines by working on bicycles. They were credited with the invention and building of the world's first successful operated airplane. The brothers never flew gliders from the sand dunes of Dayton, Ohio.

the correct answer is:

b) a rich merchant.

raymond can buy special closed cooling containers or a semi-truck with a air conditioned cooling system and an open box for the fruits,