An unusually strong wind makes it harder for a flock of birds to fly south, causing them to stop for

An unusually strong wind makes it harder for a flock of birds to fly south, causing them to stop for an extra week before heading south. This shows a connection between what 2 spheres of the Earth?

Hydrosphere and Biosphere
Hydrosphere and Geosphere
Atmosphere and Geosphere
Atmosphere and Biosphere


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