In how many test matches did Ravichandran Ashwin achieve the feat of becoming the fastest player in the world (in terms of number of matches) to get 300 wickets in test cricket in November 2017?
A man walks 10 kms towards east, then takes a right turn and walks 8 km and again takes a left and walks 6km. In which direction is the man with respect to his starting position?
The process that occurs when physical forces break rock into smaller pieces without changing the rock's chemical composition is called mechanical weathering.