Physics
Thermohaline circulation is mainly due to

Warmer, less dense water sinking in the ocean and cold water replacing it
Warm water being added to the ocean due to industial waste
Cold, dense ocean water sinking and warmer water replacing it
Winds causing circulation of ocean water

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Physics
Which of the following events occurred first ?

Marconi first tranmitted a wireless signal
Max Planck unveiled the Quantum Theory
Madame Marie Curie became the first woman Nobel Prize winner
Albert Einstein propounded the General Theory of Relativity

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