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 botany energy flow in an ecosystem biogeochemical cycle nutrient cycles species, communities and ecosystems

Which one of the following pairs is a sedimentary type of biogeochemical cycle

  1. Phosphorus and carbon dioxide

  2. Oxygen and nitrogen

  3. Phosphorus and nitrogen

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

Phosphorus and sulfur both have sedimentary biogeochemical cycles - they cycle through rocks, soil, and sediments. Carbon and oxygen have gaseous cycles (CO2 in atmosphere). Nitrogen has a predominantly gaseous cycle (N2 atmosphere). The correct pair is phosphorus and sulfur.

Multiple choice botany energy flow in an ecosystem biogeochemical cycle nutrient cycles species, communities and ecosystems

Which one of these is a sedimentary cycle?

  1. Phosphorous

  2. Hydrogen

  3. Oxygen

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

Phosphorus cycle is an example for sedimentary cycle. 

A cycle which comprises the weathering of an existing rock, followed by the erosion of minerals, their transport and deposition, then burial, is called as sedimentary cycle. 
First cycle sediments are characterized by the presence of less resistant minerals and rock fragments. If this material is reworked through a second cycle, the less resistant minerals will be eliminated or altered to more stable products. 
The more sedimentary cycles, that a sediment has passed through the more mature, it will become and it will be dominated by well rounded resistant minerals.

Multiple choice botany energy flow in an ecosystem biogeochemical cycle nutrient cycles species, communities and ecosystems

Which of the following is a sedimentary cycle?

  1. Carbon

  2. Hydrogen

  3. Nitrogen

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

The abiotic components which are recycled without any involvement of the gaseous form are known as the sedimentary cycle. The element is present in the form of salts as rocks in the geosphere which is taken up by the plants and then transferred to the animals. The phosphate is generally transferred and used in the form of ATP by the living cells. 

Thus, the correct answer is option D. 

Multiple choice botany energy flow in an ecosystem biogeochemical cycle nutrient cycles species, communities and ecosystems

Which one of the following pairs is a sedimentary type of biogeochemical cycle __________.

  1. Phosphorus and carbon dioxide

  2. Oxygen and nitrogen

  3. phosphorus and nitrogen

  4. phosphorus and sulphur
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In sedimentary cycles of matter, materials involved in circulation between biotic and abiotic components of biosphere are non gaseous and the reservoir pool is lithosphere e.g., phosphorus, calcium, magnesium.
Sulphur has both sedimentary and gaseous phases.

So, the correct answer is 'phosphorus and sulphur'

Multiple choice botany environmental factors soil-nature climate factors abiotic components

Choose the correct answers from the alternatives given .
Which of the following best describes strata ?

  1. Sedimentary rock layers that contain fossils

  2. Molten rock that contains radioactive material and is dangerous to the health of humans

  3. Sedimentary rock layers that all date from the same historical time

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fossils are the remains of living creatures, both plants, and animals, or their tracks. These are found in sedimentary rock. Sedimentary rock is composed of strata. The term rock strata refer to stacked-up layers of sedimentary rock. Other kinds of rocks can have layering in them, but the word strata are reserved for sedimentary rocks - rocks composed of individual fragments of minerals or other rocks. 

So, the correct option is 'Sedimentary rock layers that contain fossils'.

Multiple choice geography mineral and energy resources - ii mineral resources - coal - introduction mining mineral fuels

Coal is formed in ______.

  1. Metamorphic rocks

  2. Sedimentary rocks

  3. Igneous rocks

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

Coal is itself a sedimentary rock formed when remains of plants such as peat undergo bacterial decay and followed by compaction due to sedimentation, as it undergoes this process it releases methane and becomes carbon rich and hard.

Multiple choice geography mineral and energy resources - ii mineral resources - coal - introduction mining mineral fuels

In which type of rock coal is found?

  1. Igneous rock

  2. Metamorphic rock

  3. Sedimentary rock

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

Coal is an inflammable organic substance, composed mainly of hydrocarbons, found in the form of sedimentary rocks and capable of being used as fuel to supply heat or light or both. It is formed when sub merged vegetation remains under great pressure for a considerably long time. 

Multiple choice chemistry elements and compounds alloys and their properties metals, alloys and crystals chemical bonding and structure

$SiO _2$ (Silica) occurs in the form of:

  1. sand

  2. quartz

  3. opal

  4. all of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Silica also known as silicon dioxide. It is found in nature as quartz, sand or opal. Silica more so than almost any material exists in many crystalline forms called polymorphs. Silica in the form of sand is used as ingredient in sand casting.

Multiple choice biology biogeochemical cycles carbon cycling mineral coal carbon cycle

In the earths 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

In the Earths crust only 0.02% Carbon is found in the form of minerals like carbonates, hydrogen carbonates, coal and petroleum.

Multiple choice chemistry p- block elements-ii group 16 elements - general properties group 16 elements - trends in chemical properties group 16 elements

The most abundant non-metal in the earth's crust is:

  1. chlorine

  2. hydrogen

  3. silicon

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

Aluminium is the first most abundant metal while iron is the second most abundant metal on earth. It is the fourth most common element in the earth's crust. Oxygen is the most abundant non metal and second is silicon present on earth's crust.

Multiple choice economics environmental economics acid rain air pollution - effects and control air pollution and its effects

Acid rain is capable of damaging the buildings and historic monuments which are made up of rocks such as limestone and marble. Which among the following is the end product of such reaction?

  1. Quick Lime

  2. Calcium Carbonate

  3. Calcium Hydroxide

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

When sulfuric acid in acid rain reacts with calcium carbonate (limestone/marble), it produces calcium sulfate, commonly known as gypsum, which is water-soluble and washes away.