Which of these is an environmental cost of tar sands extraction? a. mine collapse b. pollution c. acid rain d. shale deposits

The correct answer is B. pollution.

A mixture of sand, clay, water and bitumen (hydrocarbon) is called tar sands or oil sands. Bitumen is extracted from tar sands and refined it to produce gasoline and extraction of tar sands greatly impact on environment. When gasoline made from tar sands emits more carbon dioxide as compare to traditional oil extraction. The mining of tar sands has increased carbon emissions over a period of time. Thus, increase percentage of carbon dioxide causes pollution.

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.