The method that will help you recall the information you just read would be the SQ4R method, which stands for [Survey // Question // Read // Recite // Relate // Review]. This could help you comprehend what you're reading, and it could make you become aware of what the information is telling you.
Answer: Oxygen
Explanation:
The gas that is useful for burning from the options given is oxygen. For combustion to take place, it should be noted that oxygen is required.
Fire is simply a chemical reaction that is being created from fuel and oxygen which eventually creates the heat and the light that's gotten. The percentage of oxygen that is in the air is about 21%.
In modesty is her best quality the nouns are "her"
Library is to book as book is to words or knowledge