Name of yellow power cell
Answers
Explanation:
Mailed Questionnaire Method
• Investigator sends a questionnaire to the informant by mail and requests to fill and return
the same. Email and SMS are used.
• A Questionnaire consists of a list of questions, with blank spaces provided for writing
answers.
INVESTIGATOR → INFORMANT (by mail)
• This method is suitable when –
➢ Area of investigation is large
6. Questionnaires Filled by Enumerators
• Enumerator is a person who collects data for the investigator.
• Enumerator prepares a list of questions and asks these questions to the informant and note
down their replies.
• Enumerator should be tactful, well trained and unbiased.
• This method is suitable when –
➢ Area of investigation is large.
➢ Respondents are literate.
➢ High Accuracy is needed
➢ Originality of investigation has to be maintained.
➢ Detailed information has to be collected.
QUALITIES OF A GOOD QUESTIONNAIRE-
➢ A Cover Letter should be attached. It should briefly explain the Objective and Scope of the survey.
➢ A Questionnaire must provide necessary instructions for filling the questionnaire.
➢ The number of questions should be as small as possible.
➢ The questions should be clear, simple and short.
➢ Questions should be logically arranged.
➢ Proper Division and sub division of questions under different heads and subheads should be done.
➢ A questionnaire should look attractive.
➢ Before doing survey using a questionnaire, a test must be done with few respondents to check the
accuracy.
➢ It should avoid personal questions, calculations, leading questions, double negatives.
Explanation:
chloroplast
A chloroplast is a type of organelle known as a plastid, characterized by its two membranes and a high concentration of chlorophyll.