Answer:
Intermittent fasting is a when participate alternate between eating and fasting and eating is specific time period . "It doesn't restrict what you are eating , it just dictates a time period when you are able to eat ."- Nutritionist hebe mills
Chloroplasts, the cell<span> wall, and vacuoles
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Answer:
<em>The correct option is A) they are all classified as pure substances.</em>
Explanation:
Pure air is a term which is used to described air which is free from pollutants or other contaminants. All the substance from which air is made are considered as pure substances. Hence, option A is correct.
Other options, like option C, is false because the components of the air are no chemically bonded to one another. They exist freely. Options D is false because not all the components of air can be classified as an element. For example, carbon dioxide is not an element.
Answer:
http://mairscience.weebly.com/uploads/5/7/8/8/57880837/8th_grade_key_2015_sol_released_test.pdf
Explanation: