The ozone layer is at height of________kilometers from the surface of the Earth? A. 10 to 20 B. 20 to 30 C. 30 to 40 D. 40 to 50 Right Answer: 20 to 30 Share : February 19, 2018 Asghar Khan Everyday Science Total 0 Votes: 0 0 Tell us how can we improve this Mcqs? Captcha: + = Verify Human or Spambot ? Related Mcqs Check Below -The unit to measure the quantity of Ozone in atmosphere is?Carrot is good source of Vitamin?Lactometer is a type of Hydrometer which is used to measure the specific gravity of?