I don’t know if this needs to be translated or if it’s for free points, I apologize if it is an actual question:/
The answer you seek is biotic
I am pretty sure it is A or C.
Answer:Algae play significant roles as producers in aquatic ecosystems. Microscopic forms live suspended in the water column. They are the main component of phytoplankton. As such, they contribute to the food base of most marine ecosystems.
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Answer:
It must be Energy is required to melt a solid because the cohesive bonds between the molecules in the solid must be broken apart so that the molecules can move around at comparable kinetic energies; thus, there is no rise in temperature. I hope this helps
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