Answer:
d. watching children play in a park and recording their behavior
Explanation:
Naturalistic observation is one of the methods used in research by the psychologists. The subjects in this experiment are observed in their natural environment. The behaviors are then analyzed and examined to draw certain conclusions out of them. Such researches help in getting a better conclusion and idea about the reaction ad behavior of the people.
A ! The body provides oxygen and nourishment etc etc
The sailors recounted their journey's as what people see in the work of artists which is paradise.
The fourth one, voluntary exchange
Answer:
Cities within range of nuclear missles during the Cuban Missle Crisis.
Explanation:
A) Cuba never colonized the US
B) Cruise ships don't float on land