5. Which factor is a primary cause of seasonal changes on Earth? A) change in Earth's distance from the Sun B) change in the rate of Earth's rotation C) wobble of Earth's axis D) tilt of Earth's axis​

Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.

D Tilt of earths axis

Explanation:The seasons are caused by the tilt of the Earth's rotational axis away or toward the sun as it travels through its year-long path around the sun. The Earth has a tilt of 23.5 degrees relative to the "ecliptic plane"

fe 55.85 g/mol and h2o 18.02 g/mol.