Which sentence would make the best thesis statement? Giraffes are tall, interesting animals.
Flamingos are pink birds that eat with their heads upside down.
Although insects are thought of as pests, they perform several vital functions in our ecosystems.
The peregrine falcon of North America is the fastest known bird, with diving speeds of over 250 mph.

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa.s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)