What problem is most directly caused by burning waste? a. groundwater pollution b. air pollution c. lake pollution d. ocean pollution

In which state was more than 100 billion tons of coal mined in 2005?

The graph shows the amount of global warming happening in different ecosystems. which populations of organisms will likely decline the most as a result of climate change, and why? a.coral reefs because of the loss of the symbiotic algae living within their bodies b.penguin populations because the fish they eat will move into warmer waters c.mountain-dwelling birds because rising sea levels will relocate their food sources d.large cats in the rainforest because of decreased habitat loss for their prey

What are 3 reasons that natural selection occurs