The two-stage ditch design was created in order to A) drain ...

[Diane]

The two-stage ditch design was created in order to
 
  A) drain wetlands and provide more agricultural land.
  B) combine agricultural areas with aquaculture of fish.
  C) allow ditches to drain off excess water from croplands but also avoid erosion during heavy rains.
  D) bring water from distant rivers and lakes to drylands in the process of desertification.

Question 2

Portland, Oregon, is a U.S. city that has taken major steps toward a more livable and sustainable urban experience, including
 
  A) curtailing automobile use and creating an urban development boundary surrounding the city.
  B) banning automobiles within the city limits and providing bicycles to residents.
  C) razing its slums and replacing them with upscale apartments and shopping centers.
  D) relaxing air quality standards to encourage inner city industry.

[Animal_Goddess]

Answer to Question 1

C

Answer to Question 2

A

[Diane]

TYSM

[amcvicar]

Gracias!