1
Question
Match column I with column II and choose the correct option.
Match column I with column II and choose the correct option.
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Solution
The correct option is C P-iii, Q-i, R-ii
The geologists have divided the geological time (the entire lifespan of the Earth) into eras and periods, which are characterised by significant events like volcanic eruptions or mass extinctions. This sequential arrangement of eras and periods is called the geological time scale.
The various eras include the Paleozoic era, Mesozoic era and Cenozoic era.
The Paleozoic era has various periods like the Silurian, Devonian, Carboniferous and Permian periods.
The end of the Paleozoic era is marked by the Permian period. The mammal-like reptiles (therapsids), dominated the land throughout the Permian period.
The Paleozoic era is followed by the Mesozoic era which includes periods like the Triassic, Jurassic and Cretaceous periods.
Conifers (gymnosperms) dominated the Jurassic period.
The Jurassic period has witnessed the evolution of giant reptiles like dinosaurs. Dinosaurs were dominant during this period.
The end of the Mesozoic era is marked by the Cretaceous period. Dinosaurs became extinct by the end of the Cretaceous period. It was a mass extinction, extinction of a large number of animals. Dinosaurs were completely wiped out marking the dawn of a new age. It is believed that the extinction took place when a massive asteroid hit the earth’s surface leading to immense changes in the atmosphere, sea levels and temperatures that ended life on Earth.
The geologists have divided the geological time (the entire lifespan of the Earth) into eras and periods, which are characterised by significant events like volcanic eruptions or mass extinctions. This sequential arrangement of eras and periods is called the geological time scale.
The various eras include the Paleozoic era, Mesozoic era and Cenozoic era.
The Paleozoic era has various periods like the Silurian, Devonian, Carboniferous and Permian periods.
The end of the Paleozoic era is marked by the Permian period. The mammal-like reptiles (therapsids), dominated the land throughout the Permian period.
The Paleozoic era is followed by the Mesozoic era which includes periods like the Triassic, Jurassic and Cretaceous periods.
Conifers (gymnosperms) dominated the Jurassic period.
The Jurassic period has witnessed the evolution of giant reptiles like dinosaurs. Dinosaurs were dominant during this period.
The end of the Mesozoic era is marked by the Cretaceous period. Dinosaurs became extinct by the end of the Cretaceous period. It was a mass extinction, extinction of a large number of animals. Dinosaurs were completely wiped out marking the dawn of a new age. It is believed that the extinction took place when a massive asteroid hit the earth’s surface leading to immense changes in the atmosphere, sea levels and temperatures that ended life on Earth.
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