Question

in the diagram, letters a, b, c and d represent earths location on the first day of the four seasons as it orbits the sun. aphelion (earths farthest distance from the sun) and perihelion (earths closest distance to the sun) are labeled to show the approximate positions where they occur in earths orbit. the dashed lines represent earths axis, and north pole is labeled n.
8a. state the number of degrees that earths axis is titled from a line perpendicular to the plane of its orbit at each lettered location.
8b. how does that tilt cause seasons on earth?

Explanation:

For 8a: Earth's axis tilt is a well - known constant value.
For 8b: The tilt causes the angle of sunlight to change as Earth orbits the Sun, affecting the intensity of solar radiation received in different hemispheres.

Answer:

8a. \(23.5^{\circ}\)
8b. As Earth orbits the Sun, the tilt causes different hemispheres to receive more or less direct sunlight at different times of the year. When a hemisphere is tilted towards the Sun, it experiences summer (more direct sunlight, longer days, more solar energy). When tilted away, it experiences winter (less direct sunlight, shorter days, less solar energy). Spring and autumn occur during the transition periods.