Answer: The earth's spin axis is tilted with respect to its orbital plane.
Explanation:
This is what causes the seasons. When the earth's axis points towards the sun, it is summer for that hemisphere. When the earth's axis points away, winter can be expected.
Answer: To locate the epicenter of an earthquake, scientists must have seismograms from at least three seismic stations.
Explanation: I hope this helps:)
Because of Earth's axial tilt (obliquity), our planet orbits the Sun on a slant which means different areas of Earth point toward or away from the Sun at different times of the year. Around the June solstice, the North Pole is tilted toward the Sun and the Northern Hemisphere gets more of the Sun's direct rays.
Paleogeography should be the answer