I believe the answer is:
random sample of the town's population
A mix of participants that reflect your town's makeup
Random sample is needed in order to ensure that the researchers do not obtain only the subjects that is close to them. Mix of participants is needed in order to ensure that the sample population are not taken from group with close similarties in behaviour.
Answer:
Pulverizing
Explanation:
Pulverizing is an authorized method of destruction.
Answer:
Los meridianos y paralelos son conceptos geográficos que consisten en líneas imaginarias que se utilizan para orientarse en la superficie de un planeta, como por ejemplo la Tierra.