Which phrase describes density? a. height of a point above sea level b. force pushing on an area or a surface c. amount of mass in a certain volume d. amount of matter an object contains

the answer is C i just did the quiz and got it right :]

Explanation:

C. amount of mass in a certain volume  

Explanation:

Density = Mass/Volume which is the amount of mass in a given volume.

science-ocean floors and habitats study guide by volleyballqueen3817 a major advance in ocean-floor mapping. list four sections of the ocean floor. algae that use sunlight to produce their own food through photosynthesis. all of the feeding relationships that exist in a habitat. drying out, predators, find food.

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.