Which factor has the biggest impact on earth's seasons?
a) earth's revolution.
b) earth's elliptical orbit.
c) earth's tilt on its axis.
d) earth's distance from the sun.

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

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:

5. what is a red giant? can our sun become a red giant? why or why not?