Are there suppose to be choices?
Widened margins does not occur at the continental margin
HIV tests are used to detect the presence of the human immunodeficiency virus
(HIV) the virus that causes acquired immunodeficiency syndrome (AIDS) in serum, saliva , or urine such tests may antibodies, antigens, or RNA .
Photosynthesis, how plants survive. Sunlight is absorbed.
It’s b because its shown in the question read it again ,and you’ll see
