Question

The section ""chemical change or physical change"" includes words and phrases such as ""sometimes it is difficult"" and ""remember.""

How do these words and phrases contribute to the tone of the article?
a) They create a light and humorous tone.
b) They emphasize the author's authority.
c) They convey a cautious and informative tone.
d) They make the article sound poetic and artistic.

Answer 1

The phrases 'sometimes it is difficult' and 'remember' contribute to a cautious and informative tone, as they indicate complexities in the topic and a need for careful attention.

Step-by-step explanation:

The words and phrases such as "sometimes it is difficult" and "remember" do not create a light and humorous tone. Rather, they contribute to a more cautious and informative tone. They serve as indicators that the topic may have complexities and that the reader should pay attention to the details provided for understanding the differences between chemical and physical changes. Therefore, the correct answer is (c) They convey a cautious and informative tone.