. Read the selection. Underline the main idea. List at least three details about the main idea.
The richness of the Philippines in terms of mineral resources is being attributed to its location
in the so-called Pacific Ring of Fire. This area is associated with over 450 volcanoes and is home
to approximately 75% of the world's active volcanoes. Metals and non-metals are important. The
properties of metals and non- metals make them useful for specific purposes. Iron is the main
material for steel bars used in buildings and road construction. Copper is used in making electrical
wires. Tin is the material for milk cans and other preserved food products. Nickel is mixed with
copper or other metals to form stainless cooking wares. Gold is important in making jewelry. The
important metallic minerals found in various parts of the Philippines include gold, copper, iron,
chromite, nickel, cobalt, and platinum. The most productive copper and gold producers in the
Philippines are found in Baguio, the province of Benguet, and in Surigao Davao areas. Major
producers of nickel are in Palawan and Surigao. The Philippines has also varied nonmetallic
resources including sand and gravel, limestone, marble, clay, and other quarry materials.​