What are probably the two most important mineral resources which must be conserved because of their necessity

Question:

What are probably the two most important mineral resources which must be conserved because of their necessity to life?
Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question

Materials and process in manufacturing

ISBN: 978-0471656531

9th edition

Authors: E. Paul DeGarmo, J T. Black, Ronald A. Kohser

Question Posted: