What early civilization in the americas developed a counting system that included zero

Ms. h's family is in the waiting room of the intensive care unit. ms. h is very ill and the family has been told she will probably die during this hospital admission. you are walking by the waiting room and you see that they are all seated together, crying. what is your best response? this task contains the radio buttons and checkboxes for options. the shortcut keys to perform this task are a to h and alt+1 to alt+9. a go into the waiting room, sit next to them, and give them time to talk with you. b call the hospital chaplain to visit them and offer prayers. c find a social worker to go into the waiting room to see if they need anything. d leave them alone to give them private time to do their grieving.

This refers to weather and atmospheric conditions measured over a long period of time.

Why are people in history willing to fight in conflicts against a more powerful oppressor?