Conserving water is important because it keeps water pure and clean while protecting the environment
A is the right answer.
To make it make sense:
The earth is big, but is really small compared to Jupiter or the sun. The solar system is a lot bigger than earth, but it fits inside our galaxy (along with millions of other solar systems, and billions of other planets). Galaxies are huge, but in our universe, there's 2 trillion of them.
Answer:
The Danube, and the Volga
Explanation:
