Geography · Science General

Rocks and Earth Materials

1,291 Questions

Study geographical questions centered around rocks, minerals, and earth materials. The focus is on the formation and identification of igneous, sedimentary, and metamorphic rocks. These earth science topics are commonly tested in civil services and state level examinations.

Igneous rocksSedimentary rocksMetamorphic processEarth materialsGeomorphic symbols

Rocks and Earth Materials Questions

Multiple choice

Which of the following is the hottest?

  1. The core of the Earth

  2. Lightning

  3. The surface of the sun

  4. Lava
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Lightning is extremely hot, with temperatures reaching up to 50,000 degrees Fahrenheit, which is significantly hotter than the surface of the sun (about 10,000 degrees Fahrenheit).

Multiple choice geography manufacturing industries in india - ii : mineral-based electronic, heavy and petrochemical industries in india indian industries industries in india

Petroleum is found in ______.

  1. Sedimentary Rocks

  2. Metamorphic Rocks

  3. Igneous Rocks

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Petroleum is oil obtained from sedimentary rocks of the Earth, so it is called mineral oil.  Petroleum and its derivatives are called "Black Gold" as they are very valuable

Multiple choice evs soil- our life horizons of soil soil - formation and profile soil-nature

Which of the following layer has more minerals?

  1. A-Horizon

  2. B-Horizon

  3. C-Horizon

  4. Both A and C
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The horizon B is also known as the layer of subsoil. It is light brown in colour. it has lots of iron and clay minerals accumulated inside it. this layer contains more soluble minerals and clay inside it and so the plant roots reaching here can get maximum mineral content for their growth and development.

So, option B "B Horizon" is the correct option.

Multiple choice chemistry occurrence of carbon compounds in nature importance of carbon covalent bonding in carbon compounds carbon and its forms

In the Earth's crust, Carbon is found in the form of_________.

  1. carbonates

  2. hydrogen carbonates

  3. petroleum

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Carbon is found in the atmosphere mostly as carbon dioxide. Animal and plant respiration place carbon into the atmosphere.

Carbon exists in the atmosphere in the form of Carbon monoxide in traces and carbon dioxide.

In the earth crust carbon is found in water, rocks, petroleum and as  carbonates. 

Carbon is also present in the form of hydrocarbons which  often use as sources of energy, such as coal, petrol and natural gas.
Multiple choice geography rocks and rock cycle rock cycle and uses of rocks rocks - introduction and importance lithosphere and asthenosphere

Tick the correct answer.
Rocks which contain fossils are ______________.

  1. Sedimentary rocks

  2. Metamorphic rocks

  3. Igneous rocks

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sedimentary rock is only rock which contain fossils.
Igneous rocks form from molten rock, and rarely have fossils in them. Metamorphic rocks have been put under great pressure, heated, squashed or stretched, and fossils do not usually survive these extreme conditions. Generally it is only sedimentary rocks that contain fossils.

Multiple choice geography rocks and rock cycle rock cycle and uses of rocks rocks - introduction and importance lithosphere and asthenosphere

Tick the correct answer.
The rock which is made up of molten magma is?

  1. Igneous

  2. Sedimentary

  3. Metamorphic

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Igneous rock (derived from the Latin word ignis meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava.

Multiple choice geography rocks and rock cycle rock cycle and uses of rocks rocks - introduction and importance lithosphere and asthenosphere

Lithification is a process of formation of

  1. minerals

  2. rocks

  3. plates

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Lithification is the process by which sediments combine to form sedimentary rocks. Compaction is a consolidation of sediments due to the intense pressing weight of overlying deposits. With compaction, sediment grains get squished together, reducing the size of the original pore space that divided them.

Multiple choice geography rocks and rock cycle rock cycle and uses of rocks rocks - introduction and importance lithosphere and asthenosphere

The ___________ are the primary source of all other rocks.

  1. sedimentary rocks

  2. igneous rocks

  3. metamorphic rocks

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The igneous rocks are called primary rocks because these were originated first of all rocks during the formation of the upper crust of the earth on cooling, solidification, and crystallization of hot and liquid magmas after the origin of the earth. Thus, all the subsequent rocks were formed, whether directly or indirectly, from the igneous rocks in one way or the other.

Multiple choice geography rocks and rock cycle rock cycle and uses of rocks rocks - introduction and importance lithosphere and asthenosphere

A rock formed after evaporation of water is __________.

  1. Plaster of Paris

  2. Gypsum

  3. Both A and B

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Rocks formed after evaporation of water are called evaporites. Gypsum is an example of evaporites.
  • Plaster of Paris is manufactured from gypsum and thus it is a secondary product hence cannot be the right answer here.
  • Thus option B ie gypsum is the right answer.
Multiple choice geography rocks and rock cycle rock cycle and uses of rocks rocks - introduction and importance lithosphere and asthenosphere

Which of the following rocks is formed by the cooling of molten rock?

  1. shale

  2. sandstone

  3. granite

  4. limestone
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Rocks formed by the cooling of molten rock are called igneous rocks. Among the given options only granite is an igneous rock while rest 3 are sedimentary ricks.
  • Hence option C is correct.