How do living systems follow the laws of conservation of mass and energy ?

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c.ozone layer hole d.increase in sea levels

Me with these questions image attached