The grand canyon is an example of
a. wind erosion.
b. water erosion.
c. rock weathering.
d. physical weathering.

another answer from our community: let us first explain the meaning of "eternal truth" which is tomean, continuing forever or indefinitely. this being the case itcannot be changed, for truth is truth no matter what changes aremade to the structure of its explanation. however, as for religeons changin… (more)

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.

i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail