the disease scurvy caused by a deficiency in vitamin c leads to an inability to synthesize the protein collagen. would prescribing calcium salts help treat the primary bone problem in this disease?

What are the seven economic and social goals?

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.

20 the compound al(nh3)2 has atoms of nitrogen.