What conservation law explains why the skater spins faster when her arms are pulled in? 
Definitions:
World's Population
The total number of humans currently living on Earth, a figure that continues to grow, impacting various aspects of global society.
Globalization
The process by which businesses or other organizations develop international influence or start operating on an international scale.
Worldwide Integration
The process of various systems and entities becoming more interconnected and interdependent on a global scale.
Economic Change
The variation in the economy over time, including phases of growth, recession, recovery, and expansion that affect employment, living standards, and resource distribution.
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