Natural Resources Science - Natural Resources

• A
  Industrial effluents.
• B
  Sewage.
• C
  Farm runoff.
• ✓
  All of these.

Answer: D.

• A
  Raising edges of fields.
• B
  Growing grasses altemating with crops.
• C
  Mud walls.
• ✓
  Rows of trees and shrubs.

Answer: D.

• A
  $46\%$
• B
  $32\%$
• C
  $16\%$
• ✓
  $2.5\%$

Answer: D.

• A
  Semiarid zone.
• ✓
  Arid zone.
• C
  Intermediate zone.
• D
  Wet zone.

Answer: B.