What is the primary cause for the change in seasons? a. the tilt of earth's axis b. the distance of earth from the sun c. the position of the moon between earth and the sun d. the speed at which earth rotates

The correct answer is option A.

Explanation:

The seasons on earth, change as the Earth tilted on its axis, and revolve in a loop around the Sun every year. Summer takes place when the hemisphere tilted to the Sun, whereas winter takes place tilted away from the Sun. This tilting is the primary reason for the 4 seasons of the year - summer, autumn winter and spring.

Thus, the correct answer is option A.

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek