Answer:1. Limited Access to Target PopulationNot everyone has access to the internet or digital devices, especially in rural or low-income areas. This can exclude certain groups and lead to sampling bias.---2. Low Response RatesMany people ignore online surveys, especially unsolicited ones. This can result in insufficient data or unreliable results due to non-response bias.---3. Lack of Personal InteractionUnlike face-to-face or phone interviews, online surveys don’t allow for clarification of confusing questions, which may lead to misunderstandings or incorrect answers.---4. Risk of Dishonest or Inaccurate ResponsesRespondents may give false, random, or rushed answers—especially if there’s no incentive or if the survey is too long or boring.---5. Technical IssuesOnline platforms may face glitches, compatibility problems, or loading issues, which can prevent users from completing the survey properly.