Burning fossil fuels releases oxides of sulfur and nitrogen. these air pollutants can be responsible for question 5 options: a. precipitation with a ph as low as 3.0. b. the increase of fish populations in lakes. c. air that tastes great, but is less filling. d. preventing eutrophication. e. biological magnification of toxins.

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).

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.