The Colorado River runs through the grand canyon.
<span>inferior planets: Mercury and Venus. closer to the Sun than Earth. The inferior planets show phases like the Moon's when viewed from Earth.Earth.<span>superior planets: Mars thru Neptune. farther from the Sun than Earth. The superior planets always appear full or nearly so. (this answer is on google )</span></span>
Zinc and petroleum would be the best aswer.
Agricultural chemicals
drying up / hope this helped :)