Answer:
Please refer to the attachment above
Have a good day Ahead:)
Pure substances- Chemical substance a form of matter having constant chemical composition and characteristic. Mixtures- A material made up of two or more different substances that are not chemically combined
Hello!
Topic sentences express the main idea of paragraphs, states the main point the writer wishes to make, and is usually the first sentence in a paragraph.
The sentence in this paragraph which meets all of the above criteria: <span>Writing is difficult because so many skills are involved.
This sentence states the main idea, lets us know what the author is trying to say, and is the first sentence of the paragraph--all the things we expect topic sentences to do.
I hope this helps you!</span>
