You need to get a separate piece of paper and put all of the evidence you found, and after the evidence you put the author's last name in parentheses. If there isn't an author, you use the first 1-2 words of the title. Basically it is telling you to cite all your evidence and write it down.
Answer:
First, second, and fourth sentence have colon errors.
Explanation:
Colon (:) is a punctuation mark which is often used to place a list of items, to separate independent clause, used while applying quotations, and for expanding the sentence. The correct use of colon in the given sentences are as follows:
• How to Reduce Exam Stress: During exam season, both your anxiety levels and academic performance are influenced by: what you consume.
• Jimmy Cole, a professional dietitian, says: “Your focus should be on high nutrient foods that will provide you with a continuous source of energy over the whole day."
• "In addition," says Cole, "berries of all colors are awesome: You can juice them, make smoothies or jam from them, or just sling them into a salad or a bowl of porridge. Whatever works!”