They uncover evidence of crimes, mostly things involving dna like finger prints or blood.
Answer: Because if you many different habitats are continuously destroyed than the food chain is ruined in those habitats from many animals going endangered.
You never can know the exact value of a physical or chemical dimension because several reasons: all the instruments have a certain sensibility (sensibility is the smallest variation of the dimension that the instrument can measure) that cannot be overcame.
Answer:
Normally all the glucose is reabsorbed so yes thats the answer
I just did this one if im not mistaken it was red giant
