of waterfalls with a height of more than 50 m , niagara falls in canada has the highest flow rate of any waterfall in the world. the total average flow rate of the falls is 2.80×103 m3/s and its average height is 52.0 m (niagara falls live, 2017). given that the density of water is 1.00×103 kg/m3 , calculate the average power output of niagara falls.

The ancestors of horses possessed feet with five digits. over time, with the development of grasslands, the digits fused and formed hooves. what evolutionary advantage did this transformation serve? a. it allowed them to climb rocky surfaces with ease. b. it allowed them to graze better. c. it enabled them to run faster from predators. d. it let them see clearly through the grasslands. e. it made them taller.

Essay questions may also be referred to as a. talk questions c. hard questions b. explain questions d. think questions

Balanced rock sits on a thin spike of rock in a canyon what forces keep the rock balanced on its tiny pedestal