Physics
Which of the following experiments analyzed the Fraunhofer lines of the solar spectrum?

Geiger and Marsdens experiment on scattering of alpha particles
Barkla's experiment on scattering of X-rays
Lamb-Rutherford experiment
Bunsen and Kirchhoff's experiment

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Physics
Thermohaline circulation is mainly due to

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

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