Record your evidence about the Moon's appearance changing because the positions of the Moon changes.

Is it true the ancient egyptians created a calendar that had 10 days in a week

Which of the following is not a result of increased democracy in russia?

If the age of the lowermost layer of a rock sample is more than 2 million years, which of the following could be the age of the upper layers? less than 1 million greater than 3.5 million between 2 million and 3 million between 3 million and 3.5 million