What are the two major types of volcanic eruptions?
a. active, dormant
c. quiet, explosive
b. extinct, silica
d. none of the above?

The solstices and equinoxes, and the number of hours of daylight associated with each, are major factors in the seasons. use the drop-down menus to identify the month when each of these events occurs. the winter solstice in the northern hemisphere: an equinox in both hemispheres: the summer solstice in the northern hemisphere:

If the basis of an isosceles trapezoid have lengths of 11 and 26, what is the length of the median?

All of the following occurred due to the invention of the railroad except