That would be geographical information systems (aka GIS).
Explanation:
Any process by which plants and other photoautotrophs convert light energy into chemical energy is photosynthesis.
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ANSWER: compared to PH3 a PH1 would be more acidic than a PH3
Explanation: so on the PH scale 1 is acid 7 is neutral and 14 is alkaline. PH1 would be stomach acid, a PH3 would be vinegar.
The smoke increases effectively increasing the planetary albedo, forcing is less however and tends to be insensitive to the solar geometry