What are the necessary components of a graph?

The necessary components in a graph are a key, x-axis title, y-axis title, graph title with the independent and dependent variable included in it, x-axis values,  and y-axis values.

the most common type of reef is the fringing reef. this type of reef grows seaward directly from the shore. they form borders along the shoreline and surrounding islands.

c is the answer to this question. altitude affects the weather because air molecules evaporate.