I would say trains, airplanes, cars, and list some more inventions that were made long time ago.
hope that this helps you. =)
Anticipation is primary emotion is most closely related to joy
A feeling of pleasure or anxiety in anticipation of an anticipated event is called anticipation. Fear, anxiety, hope, and trust are all examples of anticipatory feelings. If the anticipated event does not occur, disappointment (in the case of a positive event) or relief (in the case of a negative event) follow.
Anticipation is excitement, eager anticipation that something you know will happen. A person who has just proposed marriage longs for a positive response. Anticipation can be nervous anticipation, like when a birthday party is waiting for Elmer to come.
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A position is a position of an object (whether it's a person, a ball, or a particle) at a particular point in time.
Displacement is the difference in position of an object from one point in time to another.
Distance is the total distance an object has traveled over a period of time.
In geometry and mechanics, the vector whose length is the shortest distance from the start point to the end point of a moving point P is called displacement.
A displacement is a number that describes how far apart an object or point is. In physics or everyday use, distance can refer to estimates based on physical length or other criteria.
Distance is the distance an object moves or changes direction. The position of an object within the reference frame is called its position
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Answer:
All the answers are correct because research is multifaceted
Explanation:
While doing population studies, it is important to understand the population and they demographic, age, sex, location etc. This could have incredible effects on comparative studies.
It is also important to maintain an open line of communication to give instructions and follow up on the persons in the event that this kind of data is required. But like with population study the error that often comes into play is the element of human dishonesty. By keeping an open line of communication, the provisions can be made to keep this under check.
Finally, making sure that all the participants understand what is being asked of them is key to the open line of communication as not to create any misgivings or misunderstanding.
