Author Question: Most of the world's sand is made up of which two minerals? What will be an ideal ... (Read 40 times)

WhattoUnderstand · **on:** Jul 29, 2018

Most of the world's sand is made up of which two minerals?

What will be an ideal response?

Question 2

Of the five rock-forming mineral groupsthe silicates, carbonates, oxides, sulfides, and sulfateswhich two form economically important ores?

A) silicates and carbonates
B) carbonates and oxides
C) oxides and sulfides
D) sulfides and sulfates

Chelseyj.hasty · **Reply #1 on:** Jul 29, 2018

Answer to Question 1

Answer: Feldspar, the most common and abundant mineral, and quartz, the second most common mineral, make up most of the world's sand deposits.

Answer to Question 2

Answer: C