which of the following is a possible benefit of flood mitigation efforts?
o
they can open a floodplain area for public use.
they have no maintenance costs.
they can prevent hurricanes and other damaging storms.
o
they result in lower taxes

They have no maintenance costs

Explanation:

Some flood mitigation measures have absolutely no maintenance costs. One significant one is the enactment of a policy that revokes any kind of settlement or human activities in flood zone areas. Flood zone areas are regions where water drains naturally hence providing proper natural drainage. Keeping these regions unobstructed will definitely mitigate flood damage to built environments because they'll be less likely to get flooded.  

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.