Go through the following observations and infer the correct answer from the following options:
1. Observation:
A region experiences thick cloud cover for several days, while another nearby region has clear skies.
Inference:
Which region is likely to receive greater insolation at the Earth's surface?
2. Observation:
Two locations receive the same solar constant at the top of the atmosphere, but different amounts of insolation at the surface.
Inference:
Which factor most likely caused this difference?