Global warming. if the world pollutes too a certain level of extreme , a new ecosystem would do some good
Answer:
a theory should provide the simplest possible (viable) explanation for a phenomenon. and thereby your answer is C
Mumbling- slurring words together at a very low level of volume and pitch so that they are barely audible.
Vitamin B12 deficiencies can lead to megaloblastic anemia, a condition where the bone marrow produces large abnormally shaped red blood cells that do not function properly. Dementia, paranoia, depression, and behavioral changes can result from a vitamin B12 deficiency. Neurological damage sometimes cannot be reversed