The avalanche devoured anything standing in its way. Is it a metaphor, simile, onomatopoeia, idiom or personification?

Personification is when you give an animal or object qualities or abilities that only a human can have. This creative literary tool adds interest and fun to poems or stories. Personification is what writers use to bring non-human things to life. It helps us better understand the writer's message.The following is an example of personification used in The One and Only Ivan by Katharine Applegate. The main character Ivan is a gorilla that is given human qualities. The following lines make it seem like he thinks and expresses himself like a human.The last example is from The Day The Crayons Quit by Drew Daywalt. In this book, the crayons feel emotions and act like humans. The crayons express that they had enough of drawing and quit. I have to color all the Santas at Christmas and all the hearts on Valentine's Day. I need a rest. Personification is commonly used in advertising.

Explanation:

martians or other types of aliens represent a unique fear as opposed to zombies. vampires and other types of monsters.   in most sci-fi stories, aliens come from other worlds and have different or more advanced technology.   abductions and experimentation on human bodies that involve these technologies, or the use of these technologies against human beings and the use of unknown "powers", are a type of fear that's different from that of other types of monsters.  

man vs. nature - first choice