GK
WORLD GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cainozoic era
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Pre-Cambrian era
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Palaeozoic era
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Mesozoic era
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Detailed explanation-1: -The Precambrian is the largest span of time in Earth’s history before the current Phanerozoic Eon (the largest division of geologic time, comprising two or more eras) and is a supereon divided into several eons of the geologic time scale.
Detailed explanation-2: -The Precambrian was the “Age of Early Life.” During the Precambrian, continents formed and our modern atmosphere developed, while early life evolved and flourished. Soft-bodied creatures like worms and jellyfish lived in the world’s oceans, but the land remained barren.
Detailed explanation-3: -The Precambrian encompasses nearly 90% of the history of the Earth and around a third of the history of the Universe. The Precambrian begins with the formation of the Solar System 4.57 billion years ago (bya) and extends to the beginning of the Cambrian 540 million years ago (Mya, or 0.54 bya).
Detailed explanation-4: -The late Precambrian is the time from about 2 billion to half a billion years ago. During this long span of time, Earth experienced many dramatic geologic and climatic changes.