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 evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

Primordial soup is the name of :

  1. Rainy season ponds

  2. Hot solute rich early sea

  3. Hot molten surface of early earth

  4. Lava rich part of early earth
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Primordial soup refers to the hypothetical solution of organic compounds in the early Earth's oceans, which provided the environment for the synthesis of life's building blocks.

Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

Carbosphere comprises

  1. Atmosphere

  2. Lithosphere

  3. Hydrosphere

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
A. The layer of gases that surround the planet Earth, constitute the Atmosphere. 
B. Lithosphere is the outer rigid part of earth that comprises of crust and upper mantle.
C. Hydrosphere is the liquid component of earth i.e. the total water on the earth collectively constitutes the Hydrosphere.
Carbosphere or Carbon atmosphere comprises atmosphere, lithosphere and hydrosphere i.e. all components.
So, the correct answer is 'All of the above'.
Multiple choice botany adaptations to different ecosystems lichen lichens lichens ( the nature's pioneers )

Biological weathering of rock is caused by 

  1. Lichens

  2. Mosses

  3. Roots of plants

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • The weathering of rocks is responsible for the formation of soil. It occurs due to a variety of reasons like under the effect of lichens. 
  • Lichens cause the breakdown of rock materials and organic minerals. Thus they breakdown the surface of rocks.
  • Mosses also release different gases and cause the breakdown of rocks they grow on.
  • Roots of plants that grow on rocks cause cracks on the surface of rocks.
  • Thus, all these factors are responsible for the weathering of rocks.
Multiple choice commercial applications treasure under the ground conservation of mineral resources distribution and conservation of mineral resources indian mineral and power resources

Which one of the following is not a characteristic of minerals?

  1. They are created by natural processes

  2. They have a definite chemical composition

  3. They are inexhaustible

  4. Their distribution is uneven
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • An inexhaustible resource is one that is replaceable, while an exhaustible resource is not replaceable.
  • Minerals are natural resources and they cannot be replaced by man.
  • Therefore, the constant use of minerals at this rate will lead to their exhaustion. Thus, they are considered as exhaustible natural resources.
Multiple choice commercial applications treasure under the ground conservation of mineral resources distribution and conservation of mineral resources indian mineral and power resources

Minerals are deposited and accumulated in the stratas of which of the following rocks?

  1. Sedimentary rocks

  2. Igneous rocks

  3. Metamorphic rocks

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

Minerals are deposited and accumulated in the stratas of sedimentry rocks.

Sedimentary rocks can contain fossils because, unlike most igneous and metamorphic rocks, they form at temperatures and pressures that do not destroy fossil remains.

Multiple choice commercial applications treasure under the ground conservation of mineral resources distribution and conservation of mineral resources indian mineral and power resources

Minerals are deposited and accumulated in the stratas of which of the following rocks?

  1. Sedimentary rocks

  2. Metamorphic rocks

  3. Igneous rocks

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

Minerals are found in layers or strata in sedimentary rocks. Minerals are accumulated in horizontal strata after being exposed to high heat and pressure for a long period of time. Coal, iron ore, gypsum, potash salt etc are formed in this way.

Multiple choice commercial applications treasure under the ground conservation of mineral resources distribution and conservation of mineral resources indian mineral and power resources

Name the rock which is made of one mineral ?

  1. Backlight

  2. Stone

  3. Gemstone

  4. Limestone
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Limestone is a sedimentary rock composed primarily of calcium carbonate (CaCO3) in the form of the mineral calcite. It most commonly forms in clear, warm, shallow marine waters

Multiple choice commercial applications treasure under the ground conservation of mineral resources distribution and conservation of mineral resources indian mineral and power resources

Minerals are deposited and accumulated in the strata of which ofthe following rocks?

  1. Sedimentary rocks

  2. Metamorphic rocks

  3. Igneous rocks

  4. Solid rocks

  5. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In sedimentary rocks a number of minerals occur in beds or layers. They have been formed as a result of deposition, accumulation and concentration in horizontal strata. Coal and some forms of iron ore have been concentrated as a result of long periods under great heat and pressure. 

Multiple choice commercial applications treasure under the ground conservation of mineral resources distribution and conservation of mineral resources indian mineral and power resources

What are placer deposits?

  1. Metals that occur as sandy deposit in sands of sea floor.

  2. Metals that occur as sandy deposit in sands of land floor.

  3. Minerals that occur as alluvial deposit in sands of valley floor.

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

 Certain minerals may occur as alluvial deposits in sands of valley floors and the base of hills. These deposits are called ‘placer deposits’ and generally contain minerals, which are not corroded by water. Gold, silver, tin and platinum are most important among such minerals.