Answer:
b)It is a compound because it is made of a single kind of molecule.
Explanation:
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The answer is <span>Cyanobacteria are photoautotrophs.
</span><span>Cyanobacteria /saɪˌænoʊbækˈtɪəriə/, also known as Cyanophyta, is a phylum of bacteria that obtain their energy through photosynthesis. The name "cyanobacteria" comes from the color of the bacteria.</span>
The hydrologic cycle is another name for the water cycle.
To carry out cell processes, just like our organs carry out our bodily processes.
Urbanization creates its own forms of water stress via increasing per capita water consumption and rising incomes, as wealthier people use more water, energy, and water-intensive goods.
Explanation: