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 mud and stones soil types types of soil soil - types, uses and need for conservation

Which of the following contains the smallest rock particles?

  1. Silt

  2. Clay

  3. Sand

  4. All contain equal sized particles
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Clay soil particles are very small, packed very tightly and little space remain for air, water can be held in tiny space between the particles, so it has a good capacity to hold water. Thus, the correct option is C.

Multiple choice geography the properties of sea water properties of sea water oceanic salinity and oceanic temperature oceans : temperature, salinity and density circulation of ocean water

The heavier silicates named 'Sima' or silica + magnesium are most aboundant in the __________.

  1. Crust

  2. Core

  3. Mantle

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

The heavier silicates named 'Sima' or silica + magnesium are most aboundant in the ocean floor.

These are a mix of minerals like gold, silver, copper, lead, zinc, and rare earth metals like molybdenum, tellurium, and titanium that form along the ocean floor—near underwater volcanic vents. Finally, there are cobalt-rich ferromanganese (Fe-Mn) crusts that form a layer of the ocean floor.

Multiple choice zoology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

Which one is a sedimentary cycle?

  1. Oxygen cycle

  2. Nitrogen cycle

  3. Hydrogen cycle

  4. Phosphorus cycle

  5. Carbon cycle
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

There are 4 layers of Earth, namely lithosphere (land), hydrosphere (water), biosphere (living), and atmosphere (air). Lithosphere of Earth makes up the hard and rigid outer layer of the Earth. It is reservoir of phosphorus. The largest reservoir of phosphorus is sediments or sedimentary rocks. Hence, phosphorous cycle represents sedimentary type of nutrient cycle or simply sedimentary cycle.

Thus, the correct answer is 'Phosphorous cycle.' 

Multiple choice zoology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

Which one is the Sedimentary Cycle?

  1. Oxygen Cycle

  2. Nitrogen Cycle

  3. Hydrogen Cycle

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

Sedimentary cycles are those cycles that involve earthbound elements like, calcium, sulfur, phosphorous etc. The phosphorus cycle does not involve the atmosphere, it mainly cycles through water, soil and sediments. 


So, the correct option is 'Phosphorous cycle'.

Multiple choice zoology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

Which one of the following is sedimentary cycle? 

  1. Carbon

  2. Hydrogen

  3. Nitrogen

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

Sedimentary cycles are those cycles which include the weathering of rocks and erosion of minerals along with its circulation in the environment and back to earth crust. It includes those of iron, calcium, phosphorus and other more earthbound elements. It is the other name of phosphorus cycle. It is because of the sedimentary rocks, as well as the other type of rocks on weathering, gives rise to the cycling of phosphorus.

So, the correct answer is option D.

Multiple choice zoology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

Which of the following represents sedimentary type of nutrient cycle?

  1. Nitrogen

  2. Carbon

  3. Phosphorus

  4. Oxygen
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

There are 4 layers of Earth, namely lithosphere (land), hydrosphere (water), biosphere (living), and atmosphere (air). Lithosphere of Earth includes the crust and the uppermost mantle. It makes up the hard and rigid outer layer of the Earth. It is reservoir of phosphorus. The largest reservoir of phosphorus is sediments or sedimentary rocks. Hence, phosphorous represents sedimentary type of nutrient cycle. 

Thus, the correct answer is 'Phosphorous.' 

Multiple choice zoology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

Lithosphere is reservoir of

  1. Carbon

  2. Oxygen

  3. Phosphorus

  4. Nitrogen
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

There are 4 layers of Earth, namely lithosphere (land), hydrosphere (water), biosphere (living), and atmosphere (air). Lithosphere of Earth includes the crust and the uppermost mantle. It makes up the hard and rigid outer layer of the Earth. It is reservoir of phosphorus. The largest reservoir of phosphorus is sedimentary rocks. 

Thus, the correct answer is 'Phosphorous.' 

Multiple choice biology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

Sedimentary cycle having a small gaseous component also
is found in

  1. 'P' cycle

  2. 'S' cycle

  3. 'N' cycle

  4. 'C' cycle
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The sulfur cycle is primarily a sedimentary cycle, but it has a significant gaseous component (such as sulfur dioxide and hydrogen sulfide) that allows it to circulate through the atmosphere.

Multiple choice evs mud and stones soil - formation and profile soil-nature soil profile

Precious stones, such as gem stones, are products of

  1. Volcanic rocks

  2. Sedimentary rocks

  3. Metamorphic racks

  4. Igneous rocks
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • A gemstone, also known as the precious stone, jewel, a gem is a piece of mineral crystal which is cut and polished and it is used to make jewellery or other accessories. Gemstones are formed from igneous rocks. Interlocking crystals grow within intrusive igneous rock and may form gemstones depending on elements present, cooling time and the environment.
  • Hence precious stones, such as gemstones, are products of igneous rocks.
  • So, the correct answer is 'Igneous rocks'.
Multiple choice evs mud and stones soil - formation and profile soil-nature soil profile

The Precambrian red rock indicates the ________________.

  1. Presence of the free oxygen

  2. Absence of free oxygen

  3. Presence of hydrogen

  4. Presence of water
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The presence of red rocks (often banded iron formations) from the Precambrian era indicates oxidation of iron, which required the presence of free oxygen in the atmosphere.

Multiple choice geography rivers, coasts and glaciation river landform landforms created by wind erosion wind and coast

Weathering refers to the _______  of rocks by atmospheric reagent.

  1. disintegration

  2. denudation

  3. heat

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

Denudation is the long-term sum of processes that cause the wearing away of the Earth’s surface by moving water, ice, wind and waves, leading to a reduction in elevation and relief of landforms and landscapes. Endogenous processes such as volcanoes, earthquakes, and plate tectonics uplift and expose continental crust to the exogenous processes of weathering, erosion, and mass wasting.

Multiple choice evs weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate atmosphere and its components

What chemical reaction takes place when chemicals from rocks dissolved in water?

  1. Chemical Weathering

  2. Physical weathering

  3. Weathering

  4. Rock cycle
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chemical weathering is the process by which rocks are broken down by chemical reactions, such as dissolution, oxidation, or hydrolysis, often involving water and dissolved minerals.