"Isn't" is the best option from the list in terms of completing these sentence. This is primarily because "isn't" is a contraction of the two words "is" and "not.
Answer:
the answer would be cause and affect. when the oxygen is added to the rats environment the rat can breathe so when it is added the rat will start to breathe causing the rat to change its behavior. when there is no oxygen the rat cant breathe most likely causing the rat to panic because there is no air so when air is added the panicked rat would stop panicking because now it can breathe again
Explanation:
Answer:
Negative
Explanation:
The more time spent on electronics, the more time it affects our sleep cycles and communications.
