A country staked a territorial claim on North Pole in 2007, by planting a titanium flag :
ചന്ദ്രന് ഭൂമിയെ വലംവെയ്ക്കാന് എടുക്കുന്ന സമയം:
Which country shares the shortest international boundary with India?
The mountains come into being as a result of vertical earth' movements along cracks:
The upper atmospheric layer is known as:
Identify the order from bottom to top :