Exposure to even small amounts of radiation may cause
a. dna changes
b. hearing loss
c. emphysema
d. asthma

answer; i believe the correct answer is (c) /// is a homogeneous mixture of gaseous substance nitrogen,oxygen and smaller amounts of other substancesmixtures can be either ( homogeneous or heterogeneous)plz check first good luck

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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