This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: How do CFCs affect the concentration of ozone in the stratosphere and contribute to the formation of ... (Read 54 times)

roselinechinyere27m

  • Hero Member
  • *****
  • Posts: 557
on: Jul 15, 2018
How do CFCs affect the concentration of ozone in the stratosphere and contribute to the formation of the ozone hole?
 
  What will be an ideal response?

Question 2

How is the protective ozone shield formed? What causes its natural breakdown?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Natalie4ever

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 15, 2018
Answer to Question 1

CFCs release chlorine atoms and damage the stratospheric ozone layer. CFCs combine with the ultraviolet rays of the Sun to release chlorine that can combine with ozone and cause it to break down. Chlorine acts as a catalyst, a chemical that promotes a chemical reaction without itself being used up in the reaction. This catalytic response of chlorine can cause the damage of an untold amount of ozone, leading to significant areas of depletion.

Answer to Question 2

Ozone is formed in the stratosphere when UV radiation acts on oxygen molecules. The high-energy radiation first causes some molecular oxygen to split apart into free oxygen atoms, and these atoms then combine with molecular oxygen to form ozone. This reaction is reversible. When ozone absorbs UVB, it is converted back to free oxygen and molecular oxygen.


roselinechinyere27m

  • Member
  • Posts: 557
Reply 2 on: Jul 15, 2018
:D TYSM

abro1885

  • Member
  • Posts: 337
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Formation and structure of a peroxisome Formation and structure of a peroxisome
Formation of blood cells Formation of blood cells
Formation of Dilute Urine Formation of Dilute Urine
Summary of the formation, circulation, and absorption of cerebrospinal fluid (CSF) Summary of the formation, circulation, and absorption of cerebrospinal fluid (CSF)
Cocaine, C17H21NO4, in urine can be confirmed by mass spectroscopy at a concentration of 150 ... Cocaine, C17H21NO4, in urine can be confirmed by mass spectroscopy at a concentration of 150 ...
Control of flower formation, as revealed by mutations in Arabidopsis thaliana. Control of flower formation, as revealed by mutations in Arabidopsis thaliana.
Video: Oxygen - hemoglobin dissociation curve & Hemoglobin's affinity with oxygen - acidity

For a complete list of videos, visit our video library