Pretest on Important Minerals to Society

Hazel, a 30-year-old factory worker, recently learned that zinc is a common mineral that is essential to keep a healthy human body. He then decided to take supplements with zinc. How does Zinc help Hazel in keeping his body healthy?

• It keeps the skin healthy and radiant.

• It is essential for the immune system to properly work.

• It regulates cell division and tissue repair in wounds.

• It is important in building tissue for growth and development.

Silver is more conductive than copper. In spite of this, why do you think copper is commonly used as electrical wirings than silver?

• Copper is harder than silver.

• Copper is cheaper than silver.

• Copper is more malleable than silver.

• Copper is more abundant than silver.

Overtime soil loses its fertility due to farming activities. To maintain the productivity of farming lands, nutrients are replenished by adding fertilizer made primarily of:

• aluminum, iron and copper

• potassium, nitrogen, and carbon

• calcium, magnesium and potassium

• potassium, phosphorus, and nitrogen

Silicon is not a metal but is a good conductor. In which products do you expect Silicon to be used with this property?

• Fiber glass

• Electric circuits

• LCD displays

• Rubber

Which of the following are the uses of minerals?

I. Development of industrial plants and machinery

II. Construction and housing settlements

III. Energy generation

IV. Medicinal system

• I and II

• II and III

• III and IV

• I, II, III, and IV

Which of the following metals are mainly needed for aircraft components because they are light and durable?

• Aluminum

• Chromium

• Nickel

• Steel

Which of the following elemental mineral is used by nuclear plant to generate electricity?

• Cobalt-200

• Neptunium-180

• Thorium-238

• Uranium-235

Zinc oxide is best barrier against ultraviolet rays. In which product is it most likely used?

• Antifungal cream

• Lotion

• Swimming pool water

• Textile making

Why is chromium an important mineral in structural manufacturing industry?

• Compound of chromium is used in making pigments for paintings.

• Chromium produces compound that is used in making plastics and textiles.

• When mixed with iron, the alloy produced forms stainless steel that is resistant to rust.

• All of the above

In cosmetic products, colored mineral is very important. Which mineral is usually used for red lipstick?

• Aluminite

• Bauxite

• Galena

• Hematite