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 these fits gap 17?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
All rocks ______ (17) _______ formed in the same way.
One kind of rock, called “sedimentary rock,” is formed by sediment. Sandstones and lime–stones are _____ (18) _______ sedimentary rocks.
Since they are ______ (19) _______ in layers which are called “strata,” these rocks are called “stratified” rocks.
The tiny particles of which such rocks are made are usually rounded, since the sharp edges and corners ______ (20) _____ worn off while the particles were being rolled along stream beds, washed by the waves, or blown by winds.

  1. weren't

  2. isn't

  3. haven't

  4. aren't
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Rock formation took place in the past.

Multiple choice

Which of these fits gap 18?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
All rocks ______ (17) _______ formed in the same way.
One kind of rock, called “sedimentary rock,” is formed by sediment. Sandstones and lime–stones are _____ (18) _______ sedimentary rocks.
Since they are ______ (19) _______ in layers which are called “strata,” these rocks are called “stratified” rocks.
The tiny particles of which such rocks are made are usually rounded, since the sharp edges and corners ______ (20) _____ worn off while the particles were being rolled along stream beds, washed by the waves, or blown by winds.

  1. called

  2. rare

  3. typical

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

Sandstones and lime-stones are two particular examples of sediment rocks.

Multiple choice

Which of these fits gap 19?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
All rocks ______ (17) _______ formed in the same way.
One kind of rock, called “sedimentary rock,” is formed by sediment. Sandstones and lime–stones are _____ (18) _______ sedimentary rocks.
Since they are ______ (19) _______ in layers which are called “strata,” these rocks are called “stratified” rocks.
The tiny particles of which such rocks are made are usually rounded, since the sharp edges and corners ______ (20) _____ worn off while the particles were being rolled along stream beds, washed by the waves, or blown by winds.

  1. taken in

  2. laid down

  3. pushed out

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

They lie or are laid down in a particular structure.

Multiple choice

Which of these fits gap 20?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
All rocks ______ (17) _______ formed in the same way.
One kind of rock, called “sedimentary rock,” is formed by sediment. Sandstones and lime–stones are _____ (18) _______ sedimentary rocks.
Since they are ______ (19) _______ in layers which are called “strata,” these rocks are called “stratified” rocks.
The tiny particles of which such rocks are made are usually rounded, since the sharp edges and corners ______ (20) _____ worn off while the particles were being rolled along stream beds, washed by the waves, or blown by winds.

  1. had been

  2. are being

  3. will be

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

The sentence is in the past tense.

Multiple choice

Coral reefs are formed by

  1. Volcanic rocks

  2. Marine sediments

  3. Chlorine material precipitated from sea water

  4. Tiny colonial marine animals which construct limestone skeleton material
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 Coral reefs and atolls are significant sub-marine features. These are formed due to accumulation and compaction of skeletons of lime secreting organisms known as coral polyps.

Multiple choice

What does glass mixture constitute of?

  1. Sand and Salt

  2. Sand and Silicates

  3. Quartz and Mica

  4. Mica and Silicates
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The most familiar and historically the oldest types of glass are "silicate glasses" based on the chemical compound silica (silicon dioxide), the primary constituent of sand. The term glass, in popular usage, is often used to refer only to this type of material, which is familiar from use as window glass and in glass bottles.

Multiple choice

Which of these fits gap 19?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
All rocks ______ (17) _______ formed in the same way.
One kind of rock, called “sedimentary rock,” is formed by sediment. Sandstones and lime–stones are _____ (18) _______ sedimentary rocks.
Since they are ______ (19) _______ in layers which are called “strata,” these rocks are called “stratified” rocks.
The tiny particles of which such rocks are made are usually rounded, since the sharp edges and corners ______ (20) _____ worn off while the particles were being rolled along stream beds, washed by the waves, or blown by winds.

  1. taken in

  2. laid down

  3. pushed out

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

They lie or are laid down in a particular structure.

Multiple choice

Which of these fits gap 18?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
All rocks ______ (17) _______ formed in the same way.
One kind of rock, called “sedimentary rock,” is formed by sediment. Sandstones and lime–stones are _____ (18) _______ sedimentary rocks.
Since they are ______ (19) _______ in layers which are called “strata,” these rocks are called “stratified” rocks.
The tiny particles of which such rocks are made are usually rounded, since the sharp edges and corners ______ (20) _____ worn off while the particles were being rolled along stream beds, washed by the waves, or blown by winds.

  1. called

  2. rare

  3. typical

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

Sandstones and lime-stones are two particular examples of sediment rocks.

Multiple choice

Which of these fits gap 20?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
All rocks ______ (17) _______ formed in the same way.
One kind of rock, called “sedimentary rock,” is formed by sediment. Sandstones and lime–stones are _____ (18) _______ sedimentary rocks.
Since they are ______ (19) _______ in layers which are called “strata,” these rocks are called “stratified” rocks.
The tiny particles of which such rocks are made are usually rounded, since the sharp edges and corners ______ (20) _____ worn off while the particles were being rolled along stream beds, washed by the waves, or blown by winds.

  1. had been

  2. are being

  3. will be

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

The sentence is in the past tense.

Multiple choice

Which of these fits gap 17?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
All rocks ______ (17) _______ formed in the same way.
One kind of rock, called “sedimentary rock,” is formed by sediment. Sandstones and lime–stones are _____ (18) _______ sedimentary rocks.
Since they are ______ (19) _______ in layers which are called “strata,” these rocks are called “stratified” rocks.
The tiny particles of which such rocks are made are usually rounded, since the sharp edges and corners ______ (20) _____ worn off while the particles were being rolled along stream beds, washed by the waves, or blown by winds.

  1. weren't

  2. isn't

  3. haven't

  4. aren't
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Rock formation took place in the past.

Multiple choice

Consider the following statements about sedimentary rocks:

  1. Sedimentary rocks are formed at Earth's surface by the hydrological system.
  2. Formation of sedimentary rocks involves the weathering of pre-existing rocks.
  3. Sedimentary rocks contain fossils.
  4. Sedimentary rocks typically occur in layers.

Which of these statements are correct?

  1. 1 and 2

  2. 1 and 4

  3. 2, 3 and 4

  4. 1, 2, 3 and 4
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All the statements are true about sedimentary rocks.

Multiple choice

Quartzite is metamorphosed from

  1. limestone

  2. obsidian

  3. sandstone

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

Quartzite is a metamorphosed rock which was originally a sandstone. It is converted dut to heat and pressure.

Multiple choice

Pelagic deposits consist of:

  1. terrigenous materials

  2. cosmic materials

  3. inorganic materials

  4. organic ooze materials

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pelagic deposits are deep-sea sediments that accumulate on the ocean floor, far from land. They are primarily composed of organic oozes (remains of microscopic marine organisms) and red clays.