Contract in colours: black and white = lack of movement, frozen. Coloured = free flowing movement in the blend of colours.
Answer: The topic sentence
Explanation: If the text is properly written, the topic sentence should either be at the beginning of the paragraph/text, or the end, if it is a short text; for things like the heading or title; words in special print; repeated words; things reiterated by pronouns; or ideas being suggested.
Answer:
Too much information
Explanation:
There are multiple topics covered in this single passage - radios, cell phones, and television. There's no end goal to what this is talking about, it's all over the place. A paragraph should have a coherent and cohesive topic, which this does not.
Answer:
because it's important for them to have an understanding of most things
Explanation:
which is why we require educators to be not just high school graduates but university graduates as well.