Green Warrior Class 5 Clean Water and Sanitation

Asked by AKSHAY GURU VARADHARAJAN · SRI CHAITANYA TECHNO SCHOOL, JAYANTI NAGAR.

"Desalination" is a process that turns salty ocean water into fresh drinking water. While it provides clean water, why is it not used everywhere?

Answer as guest — Start Free Practice Test to earn Practice PointsHow to earn pointsAsk a question+3Answer a question+1Someone answers yours+1Your Q gets upvoted+1Pioneer bonus (first 5)+5, ask questions & climb the leaderboard!

A Saltwater is too heavy to be pumped into machines.
B It requires a massive amount of energy and produces "Brine" (super-salty waste) that can harm marine life.
C The salt removed from the water is poisonous and cannot be touched.
D Ocean water disappears if you try to take the salt out.

Show answer and explanation

Answer: B. It requires a massive amount of energy and produces "Brine" (super-salty waste) that can harm marine life.

Answer: (B)
Simple Explanation: It’s an expensive "trade-off." To get fresh water, we have to use lots of electricity (usually from fossil fuels) and we dump very salty, hot waste back into the sea, which can kill fish.

Answering after opening this box earns no Practice Points.

Rules for asking and answering

"Desalination" is a process that turns salty ocean water into fresh drinking water. While it provides clean water, why is it not used everywhere?

More questions like this