Blue triangles represent a cold front<span> advancing in the direction of the triangles, as cooler air displaces warmer air upwards.
</span>so the answer is cold front.
I am actually going over the novel and the holocaust in school. Anne Franks diary teaches us <span>that you don't need to be somewhere to experience it.
Hope this helps :3
If not Pm me and i will go into it with more detail
~Tflipz</span>
Answer: AN AMERICAN MEDIA!
Explanation: