National Institute of Open Schooling
Air Pollution
Seventy percent of the air pollution in China is due to car exhaust. Under the umbrella of environmental chemistry, learners extensively explore air pollution. From the makeup of our atmosphere to sources of major air pollutants, classes...
Smithsonian Institution
National Museum of Natural History: American Mammals: Mexican Long Tongued Bat
Mexican long-tongued bats feed on fruits, pollen, nectar, and probably insects. The populations that summer in the United States migrate to Mexico and northern Central America in winter, following the blooming cycle of plants such as...