Scientist use it so all the scientific experiments are conducted with the same weights and measures.
The answer is B) closed because it flows through things. For example: Light switches on the inside. I hope this helps.
Motion of heat inside and object
He might have done it to save his people and so that they could fight back after his death and send the people that he sent home during the war to defeat the Persians after his death.
I go with D, it looks like the clearing in the story symbolizes to Jody a place to hunt wolves and bears, I can infer that from the description of the story.
