A volcano with an empty magma chamber would be called a caldera
Explanation: During certain types of explosive eruptions, a volcano's magma chamber may empty enough for an area above it to subside, forming a type of larger depression known as a caldera.
The clear rendering however reads;
What does the graph on the first page of this class reveal about the demand for oil over time?
Explanation:
Since the graph is not provided, note the following about demand curve (graph). A demand graph is diagrammatic representation of how demand changes over time.
Thus, demand is usually plotted against price. I'll recommend you look carefully at the trend of the graph to find rising peaks and falling peaks which would indicate if demand is stable or not.
The correct answer is letter B. increase deposition of sediments upstream. The negative effect of using too much water for the irrigation of crops is that it wash out sediments and these sediments are brought down the water streams.
The correct answer for the question that is being presented above is this one: "2.) Plate tectonics, plate boundaries ." Plate tectonics cause earthquakes and volcanic activity at plate boundaries.
Here are the following choices:
1.) Fault lines, laccoliths
2.) Plate tectonics, plate boundaries
3.) Plate tectonics, the Ring of Fire
4.) Heat from Earth's mantle, fault lines
The air and water are polluted
