How Much Do You Know About Climate Change?
Question 28 out of 29

28. Which light bulb uses the least energy?
Halogen Compact fluorescent Incandescent ▶ Next Question ◀

What Age Do People Think You Are?
What Age Do People Think You Are?
How Tall Is Your Potential Soulmate?
How Tall Is Your Potential Soulmate?
What Popular Song Describes You Best?
What Popular Song Describes You Best?
What Brand Matches Your Personality?
What Brand Matches Your Personality?
Which Ice Cream Flavor Are You?
Which Ice Cream Flavor Are You?
Which TV Mom Best Fits Your Personality?
Which TV Mom Best Fits Your Personality?
Which Famous Witch Are You?
Which Famous Witch Are You?
What’s Your Sanity Score?
What’s Your Sanity Score?
How 1920s Are You?
How 1920s Are You?
What Kind of Person Are You?
What Kind of Person Are You?
What Is My Generation?
What Is My Generation?
Just How Much Of A Picky Eater Are You?
Just How Much Of A Picky Eater Are You?