I think it was Armed conflict
That depends on him maybe he should accept that not all people are the same. Also good for him:)
Explanation:
China exports far more than it imports-as a result, its economy is growing quickly, and there is starting to be less class warfare and a growing middle class.
Answer:
Convenience sampling
Explanation:
In convenience sampling, the samples for the research is drawn from the population that is very easily accessible by the researchers rather than using a specific criteria.
From the description above we can see that the internet site use only its members as the samples. Since the data of the site's members is easily accessible for the site, we can consider it as convenience sampling.