Answer: Yes the statement is true.
Explanation: Endorphins are chemicals produced by the human bodies to relieve stress and pain.
They are produced mainly by brain and help to transmit electrical signals within nervous system, thus are called as neurotransmitters.
They are also called as "feel good chemicals" as they can act as pain relievers and happiness booster and thus lead to better emotional health.
Answer:
The object has to move a distance when a force is applied to it
Explanation:
For work to be done on a body the force applied must move the body through a particular distance.
Work done = Force x distance
If no distance is moved by the force, no work is done.
Also, the angle between the force and the distance must be 0 to do the maximum work on the body.
Answer:
B
Explanation:
Oil > Animals > Plants > Chemicals
Answer: In the first paragraph, name a theme of Paul Laurence Dunbar's poem "Sympathy," and explain how it develops, citing specific examples
Explanation:
A catalyst will speed up the activation energy and therefore speed up the reaction. The products will form fast because of this.
