Answer: reliable
Explanation:
Reliable (marketing research) information is collected from questions (measurements) that are free from systematic or statistical error. An absence of systematic error implies that the respondents (i.e., the sampled people) who answer questions actually understand what the questions were asking.
Answer:
C
Explanation:
hope for help ....im expert
Answer: 1. Carbon dioxide is not an air pollutant
Explanation: it can be toxic and or safe
