Coal and Petroleum Quiz

Which factor plays the most significant role in converting plant material into coal over millions of years?

• High temperature and high oxygen

• Low pressure and presence of microbes

• High pressure and absence of air

• High moisture and sunlight

Which of the following is the correct sequence in the coal formation process from earliest to latest?

• Bituminous → Peat → Anthracite → Lignite

• Peat → Lignite → Bituminous → Anthracite

• Lignite → Peat → Bituminous → Anthracite

• Anthracite → Bituminous → Peat → Lignite

Which of the following forms of coal has the highest calorific value but is the least abundant?

• Bituminous

• Lignite

• Anthracite

• Peat

Which type of coal still contains recognizable plant structures and is considered the youngest?

• Anthracite

• Lignite

• Peat

• Bituminous

Why is petroleum often found in sedimentary rocks and not in igneous or metamorphic rocks?

• Sedimentary rocks are lighter

• Organic matter accumulates in sedimentary layers

• Petroleum forms in volcanic areas

• Only sedimentary rocks are porous

What is the major difference between coal and petroleum in terms of their origin?

• Coal comes from animals, petroleum from plants

• Both come from animals

• Coal from terrestrial plants, petroleum from marine organisms

• Coal is inorganic, petroleum is organic

Which of the following is NOT a product obtained from petroleum refining?

• Diesel

• Bitumen

• Coke

• Kerosene

Which form of coal is considered the most suitable for domestic use due to its cleaner burn?

• Lignite

• Peat

• Bituminous

• Anthracite

Which factor most affects the grade of coal?

• Sulfur content

• Water content

• Age and depth of burial

• Size of the coal block

The term "fossil fuel" is used because:

• They are found only under fossil-rich rocks

• They are derived from dead plants and animals

• They produce fossils when burned

• Only ancient humans used them