How many periods is Ancient Egypt divided into?

The sun a. will become a red giant within two to three million years b. is in its main sequence, which willlast thousands of years c. is in its main sequence, which will last billions of years. d. will explode as a supernova after its main sequence

The tension between the issues of slavery and immigration led to the destruction of which political party? a) constitutional union b) democratic c) know-nothing d) whigs

Aperiodontist mainly treats patients with