Limestone is made of rock and animal shell fragments. it is
a metamorphic rock
an intrusive igneous rock
an inorganic mineral
an organic sedimentary rock

Coral reefs support more species per unit area than any other marine environment on earth. what is one way coral reefs are important to the health of the biosphere

Describe the relationship and movement between temperature and density in a convection cell. make sure you identify the direction of travel

Explain why scientists use the word dominant for certain traits.