Which of the following is not true of the seasons?

a. the earth is closer to the sun during the summer and farther away from the sun during the winter.
b. the seasons are caused the tilt of the earth on its axis.
c. summer does not start on the same day in every country on the earth.
d. during the summer, days are longer.

C. Summer does not start on the same day in every country on the Earth

Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by  mathematical calculations  before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of  uranus  led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to   spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.