The question is incomplete, and the full version can be found on Brainly.
Answer:
The proverb "Safety doesn't happen by accident" is connected to the topic of health and safety at work because it refers to how much effort it takes to provide a safe environment, which applies to the work environment.
Explanation:
The proverb is a play on the words "safety" and "accident" by noting the irony of how avoiding accidents, which is the same as providing safety, requires effort. A healthy and safe environment at work, without accidents, requires a strong protocol that must be followed by everyone involved.
For question 1 the correct answer is:
B. Open and honest communication contribute to a happy relationship.
the subject Open and honest communication is plural then the verb agrees to it
For question 2 the correct answer is:
D. Interesting news<u> is</u> what sells our paper.
the subject Interesting news is singular, so the congujation of the verb BE "is" is the correct one.
D. if drivers did not send text messages while driving, they would have fewer traffic accidents.
This is math, not English, but okay xD
"Two intersecting lines are perpendicular if and only if they form four 90 degree angles" would be my answer.