Question

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 ________.

• A. harvesting … potable
• B. preserving … available
• C. controlling … possible
• D. maintaining … edible
• E. collecting … accessible

Answer 1

The Correct Option is A

To solve the given fill-in-the-blank question, we need to choose words that complete the sentence logically and contextually. The sentence is: "Research should be done on rainwater ________ and treatment of wastewater so that it might be recycled and made ________."

Let's analyze the options:

1. harvesting … potable:
   • Rainwater harvesting is the process of collecting and storing rainwater for future use. This fits well in the context as it is a common technique used for water conservation.
   • The word potable means suitable for drinking. It aligns with the treatment of wastewater, aiming for it to be clean and safe to drink.
2. preserving … available:
   • Rainwater preserving is not a standard term compared to harvesting.
   • Made available is very generic and doesn't specifically relate to making water drinkable.
3. controlling … possible:
   • The term controlling doesn’t naturally apply to rainwater in this context.
   • Possible doesn’t convey the idea of purification or making the water safe to drink.
4. maintaining … edible:
   • Rainwater maintaining is not a common term.
   • Edible applies to food, not water, and is therefore inappropriate here.
5. collecting … accessible:
   • Collecting might fit, but accessible is too broad and doesn't specifically mean suitable for drinking.

By evaluating each pair, the most logical and relevant choice is harvesting … potable, as it correctly addresses the process and goal of the actions described in the sentence.

Therefore, the correct answer is: "Research should be done on rainwater harvesting and treatment of wastewater so that it might be recycled and made potable."