What is an ore? Where are the ores of metallic minerals generally located?
Ore is the raw me tat-found in the earth mixed with other materials or impurities. They are generally located in igneous or metamorphic rocks.
Write the advantages and dis¬advantages of non-conventional sources of energy.
Name and describe some non- conventional sources of energy.
How is hydroelectricity, produced?
Write common uses of minerals.
Describe the mineral distribution in North America.