D. Because it talks about how you would not be able to enjoy the sport without the physics, however it says nothing on how scientific principals effect snowboarding.
Here is the answer to the given question above. Based on the given sample sentences, the best way to combine the sentences using a semicolon would be this: <span>The world’s nations must cooperate; one nation cannot solve the world’s problems by itself. The correct answer would be the second option. Hope this helps.</span>
Based on the given statement above, I can say that the type of comparison that is being shown is a SIMILE. A simile is a literary technique that compares two unlike objects with the use of the words "like" or "as...as". Apparently, this uses "as...as" in comparing "they" and "bark of a tree". Hope this helps.
Verbal: communication with words, which may be done orally through speech or physically through sign language
Nonverbal: communication that does not involve words
Interpersonal: any type of communication, verbal or nonverbal, between two or more people
Group: communication between groups of people or within a group of people
