Answer:
A gas composed of molecules with three oxygen atoms
Explanation:
Ozone is 
The answer is C an exothermic reaction because during a exothermic reaction light and heat are produced
Answer:
1. Make a List of their Likes and Dislikes for the Surprise Birthday Party.
2. Plan Surprise Birthday Party Location.
3. Invite the family and Friends to the Surprise Birthday Party.
4. Arrange a Surprise Birthday Party Cake.
5. Plan a Lunch or Dinner Surprise Birthday Party.
6. Plan Games for the Surprise Birthday Event.
7. Pick a personalized theme. Choose a theme based on the guest of honor's favorite movies, books, or TV shows.
8. Book a surprising venue. Source: Peerspace.
9. Send out sneaky invites.
10. Have a strong alibi.
11. Add the sweet finishing touch.
12. Order catering for food and drinks.
13. Turn up the music.
14. Time to decorate.
Lymphoid organs in the immune system, includes the bone marrow
Collaboration of ideas and different perceptions/views of scientific studies allows for better discussions of new scientific possibilities.