Biology · Geography

Fossils and Geological Eras

1,140 Questions

Fossils and geological eras provide a window into the history of the Earth. This topic covers prehistoric life, mass extinctions, and the geological time scale. It is an important part of the general science syllabus for many aptitude tests.

Geological time scaleTypes of fossilsPrehistoric lifeAncient climates

Fossils and Geological Eras Questions

Multiple choice

Directions: In question given below, each passage consists of six sentences. The first & six sentences are given in the beginning The middle four sentences in each have been removed and jumbled up. These are labeled P, Q, R & S. Find out the proper order for the four sentences.

S1 : Paleobotany is the study of fossil plants preserved in rocks dating back it millions of years. S6 : The fossil plants indicates the age of the rock, and also point to facts regarding climate, Temperature and topography. P : Records of the history of the world are contained in fossils. Q : Through the ages, plants have evolved from simple to more complex forms. R : First there were water plants; then land plants appeared during the Paleozoic era. S : But since the fossil remains appear locked in rock layers, they are closely related to the Geologists area of investigation. The proper sequence should be:

  1. RQSP

  2. SQRP

  3. PSQR

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

The correct sequence QRPS creates a logical flow about plant evolution and paleobotany: Q establishes plant evolution from simple to complex, R provides specific examples (water to land plants), P connects to fossil records containing world history, and S links fossils to geology. This sequence moves from biological evolution to fossil evidence to geological context, perfectly setting up S6 about how fossil plants indicate rock age and climate information.

Multiple choice

Match list I (Geological period) with list II (Distinctive life/ Incidence) and select the correct answer using the code given below lists: List I List II A. Late-precambrian 1. Himalya Orogeny B. Carboniferous 2. Sponges C. Devonian 3. Man D. Upper cretaceous 4. Coal 5. Fish

  1. A 5 B 4 C 3 D 1

  2. A 2 B 1 C 5 D 4

  3. A 5 B 1 C 3 D 4

  4. A 2 B 4 C 5 D 1
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The correct matching is: Late-Precambrian (A) with Sponges (2) - early multicellular life; Carboniferous (B) with Coal (4) - extensive coal forests; Devonian (C) with Fish (5) - 'Age of Fishes'; Upper Cretaceous (D) with Himalayan Orogeny (1) - the collision began around this time. Option D matches this pairing: A-2, B-4, C-5, D-1.

Multiple choice

The Appalachian Mountains were formed in which of the following periods?

  1. Cretaceous

  2. Mesozioc

  3. Palaeozoic

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

The Appalachian Mountains were formed during the Paleozoic Era, primarily through the Alleghenian orogeny around 325-260 million years ago when continental collisions built major mountain ranges. The Cretaceous, Mesozoic, and Tertiary are much younger periods that occurred after the Appalachians had already formed and begun eroding.

Multiple choice

The correct chronological sequence of periods of Pleistocene Ice Age is

  1. Riss-Gunz-Wurm-Mindel

  2. Gunz-Mindel-Riss-Wurm

  3. Mindel-Riss-Gunz-Wurm

  4. Riss-Wurm-Gunz-Mindal
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Pleistocene Ice Age had four major glacial periods in chronological order: Gunz (oldest), Mindel, Riss, and Wurm (youngest). This sequence represents advancing and retreating ice sheets over approximately 2.6 million years. The Gunz-Mindel-Riss-Wurm ordering is well-established in European Alpine stratigraphy.

Multiple choice

Tertiary period had five epochs. Select the correct order in which these epochs appeared in the geological time scale from ancient to recent times:

  1. Palaeocene-Oligocene-Miocene-Eocene-Pliocene

  2. Palaeocene-Pliocene-Oligocene-Miocene-Eocene

  3. Oligocene-Palaeocene-Miocene-Eocene-Pliocene

  4. Palaeocene-Eocene-Oligocene-Miocene-Pliocene
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The correct answer is the Palaeocene-Eocene-Oligocene-Miocene-Pliocene sequence. This is the correct chronological order of the Tertiary period epochs from oldest to youngest. The Tertiary began with the Palaeocene (~66 million years ago), followed by Eocene, then Oligocene, then Miocene, and finally Pliocene (~2.6 million years ago). The other options scramble this order.

Multiple choice

The most recent geological epoch of the Quaternary Period covering the 10 years or so from the end of the Pleistocene epoch to the present day is known as

  1. Pliocene

  2. Miocene

  3. Oligocene

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

The Holocene is the current geological epoch that began approximately 11,700 years ago at the end of the last glacial period (Pleistocene). The Pliocene, Miocene, and Oligocene are older epochs from the Tertiary Period, not part of the Quaternary.

Multiple choice

Match List I with List II and select the correct answer: List I List II (Geological period) (Event associated with the period) A. Carboniferous 1. Start of Himalayan Orogeny B. Pre-cambrian 2. Birds made there appearance C. Pleistocene 3. Formation of rocks containing coal, petroleum and natural gas D. Upper Cretaceous 4. Large areas subject to glaciation 5. Rock formation having rich metallic materials

  1. A 5 B 3 C 2 D 4

  2. A 3 B 5 C 4 D 1

  3. A 5 B 3 C 4 D 1

  4. A 3 B 5 C 2 D 4
Reveal answer Fill a bubble to check yourself
B Correct answer
Multiple choice

Directions: Choose the word or set of words for each blank that best fits the meaning of the sentence as a whole.

Some palaeontologists debate whether the diversity of species has _________ since the Cambrian period or whether imperfections in the fossil record only suggest greater diversity today, while in actuality there has been either __________ or decreased diversity.

  1. changed … escalation

  2. increased .. stasis

  3. expanded … discontinuity

  4. declined … reduction

  5. improved … deviation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Two opposing views are presented, so word in the first blank must be opposite to "decreased" and word in the second blank must be similar to it. So, increased and stasis are the correct words.