You didnt exactly put in any answer options...
But here is my answer: Comparing a desert to Mars, i would say that
A desert has oxygen
And mars has carbon dioxide
A desert has sand
Mars has a rocky surface
Mars is a planet
A desert is not
The things i could think of that a desert and planet mars can relate to...I would say they both have heat and both sometimes have dust storms.
Answer:
A seamount is a mountain that is formed at a hotspot, large enought to be seen above the ocean's surface
A mathematical model of a food web helps you better understand portions, and track the structure of how the web is flowing. The food web could also help because it helps predict things.
Their mass because it can let you know their weight and size
