Scientists distinguish whether an entity is living or nonliving by describing the of life.

a. characteristics
b. value
c. length
d. quality

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

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

Suppose you use three different scale to weigh a bag of oranges. one scale says the nag weighs 2.1 lb, and third says it weighs 2.1 lb. the actual weight of the bag of oranges is 2.153 lb. which of the following best decribes these results?