ESS
Grade-7
Easy
Question
The boundaries between different eons, eras, periods, and epochs are defined by:
- A committee of paleontologists
- Significant changes in Earth’s geologic and life history
- The presence or absence of dinosaurs
- All of these
The correct answer is: Significant changes in Earth’s geologic and life history
Related Questions to study
ESS
An era is a unit of geologic time that is smaller than eons and greater than periods.
An era is a unit of geologic time that is smaller than eons and greater than periods.
ESSGrade-7
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Which of the following is the oldest subdivision of the geological time scale?
Which of the following is the oldest subdivision of the geological time scale?
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Which of the following geological time scale is called the “Age of Dinosaurs”?
Which of the following geological time scale is called the “Age of Dinosaurs”?
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The geological time scale of Earth’s history is given in the picture. Arrange the geological time in order starting from the earliest.
The geological time scale of Earth’s history is given in the picture. Arrange the geological time in order starting from the earliest.
ESSGrade-7
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Most of the fossils are found in ____________ rock
Most of the fossils are found in ____________ rock
ESSGrade-7
ESS
Match the following:
| A. |
Human Era |
i. |
Mesozoic era |
| B. |
The last ice age of Earth |
ii. |
Holocene |
| C. |
Dinosaur era |
iii. |
Precambrian era |
| D. |
Oldest geological time scale |
iv. |
Pleistocene |
Match the following:
| A. |
Human Era |
i. |
Mesozoic era |
| B. |
The last ice age of Earth |
ii. |
Holocene |
| C. |
Dinosaur era |
iii. |
Precambrian era |
| D. |
Oldest geological time scale |
iv. |
Pleistocene |
ESSGrade-7
ESS
Which of the following geological time scale is associated with global changes due to human activity?
Which of the following geological time scale is associated with global changes due to human activity?
ESSGrade-7
ESS
Which of the following geological epoch is known as the “Human era”?
Which of the following geological epoch is known as the “Human era”?
ESSGrade-7
ESS
The current geological epoch of Earth is known as ___________.
The current geological epoch of Earth is known as ___________.
ESSGrade-7
ESS
Which is the correct order of geological time scale from longest to shortest?
Which is the correct order of geological time scale from longest to shortest?
ESSGrade-7
ESS
Which of the following geological era is associated with recent life?
Which of the following geological era is associated with recent life?
ESSGrade-7
ESS
“Paleontology” is associated with the study of __________.
“Paleontology” is associated with the study of __________.
ESSGrade-7
ESS
Which is the longest subdivision of the geological time scale?
Which is the longest subdivision of the geological time scale?
ESSGrade-7
ESS
What is the approximate age of Earth?
What is the approximate age of Earth?
ESSGrade-7
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The remains or traces of ancient life that have been preserved by natural processes are known as _____________.
The remains or traces of ancient life that have been preserved by natural processes are known as _____________.
ESSGrade-7
