Answer:
The answer to this question is true. Swinging a tennis racket against a ball is an example of a third class lever.
Explanation:
Levers are examples of simple machines that makes work easier by minimizing human effort to do work.
Answer:
The correct answer is - true.
Explanation:
Aspects of body language such as facial expressions, gestures are important non verbal communication tools that help in detecting the emotion of an individual. Verbal communication tools are also important to detect emotions, however, Body language is more essential than verbal communication tools.
Facial expressions are helpful to recognize if an individual is happy, sad, that can easily experience on face of of a particular person.
Thus, the correct answer is - true.
All of them do and sadly always will ?!