Question:medium

Directions: Fill in the blanks with the words that best fit the meaning of the sentence as a whole.
Research should be done on rainwater ________ and treatment of wastewater so that it might be recycled and made ________.

Updated On: Nov 25, 2025
  • harvesting … potable
  • preserving … available
  • controlling … possible
  • maintaining … edible
  • collecting … accessible