In order to learn about children’s toy preferences, researchers interview children at a local preschool and base their inferences on the children’s responses. this is an example of research.

Survey

Explanation:

According to my research on different types of research methodology, I can say that based on the information provided within the question this is an example of Survey Research. This research refers to the process of obtaining information by asking a set number of people the same questions and then polling the results together to obtain an overall answer.

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  b.

there are isolated pockets of farming, generally around rivers and oases, which are used for irrigation.

what he said above me         look up that's the answer