Iam the 1st on earth ,the 2nd in heaven ,i appear 2 times in a week , you can only see me once in a year although i am in the middle of the sea, what am i?

Asimilarity between the governments of israel and iran is that a both are considered democracies b. both are ruled by a prime minister c. both give men and women voting rights d. neither allows political parties to exist

Ozone in the upper atmosphere has been depleted by a. sulfur dioxide. b. chlorofluorocarbons. c. carbon dioxide. d. oxygen.

Which soil layers comprise the topsoil? o horizon a horizon b horizon c horizon