100 Best Geography- Rocks and Minerals MCQs
Q57). Which is the purest commercial form of iron ?
a).Pig iron
b).Steel
c).Stainless steel
d).Wrought iron
Correct Answer:
Wrought iron
Explaination:
Q58). Which of the following is also called white coal ?
a).Petroleum
b).Natural gas
c).Hydro-electricity
d).Uranium
Correct Answer:
Hydro-electricity
Explaination:
Q59). Gypsum is used for improvement of
a).Acidic Soils
b).Saline Soils
c).Alkaline Soils
d).None of these
Correct Answer:
Saline Soils
Explaination:
Q60). The ore of Aluminium is
a).Hematite
b).Bauxite
c).Pyrites
d).None of these
Correct Answer:
Bauxite
Explaination:
Q61). Which of the following resources is renewable one ?
a).Uranium
b).Coal
c).Timber
d).Natural Gas
Correct Answer:
Timber
Explaination:
Q62). Which one among the following is not an igneous rock ?
a).Granite
b).Basalt
c).Gabbro
d).Gneiss
Correct Answer:
Gneiss
Explaination:
Q63). Zawar mines are important for
a).Lead
b).Zinc
c).Tungstan
d).Bauxite
Correct Answer:
Zinc
Explaination:
Q64). Which one of the following is a non-metallic mineral ?
a).Manganese
b).Magnesium
c).Gypsum
d).Bauxite
Correct Answer:
Bauxite
Explaination: