World Geography
The oldest rock system of the world is:

The Primitive Rock system
The Archaean Rock system
None of these
The Zircons Rock system

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World Geography
Which among the following impact craters of the Earth is/are correctly matched?Lonar crater – Tajikistan Kaali crater – IndiaKarakul crater – EstoniaSelect the correct code from the options given below:

Only 2 & 3
None of these
Only 3
Only 2

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