16) during the winter time, the total number of hours of sunlight decreases. what effect would this have on the process of photosynthesis

The answer is A.) The rate of photo would decrease because...and you know the rest.

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).