Which of the following happens during the main-sequence stage of a star’s life? a)it cycles, appearing brighter and dimmer in turns. b)it changes the color that it emits. c)it increases its distance from the sun. d)it grows continuously smaller and dimmer.

What bodies of water provided the eastern border of the zhou dynasty? ?

By july of 1950 north korean forces had pushed south korean forces as far south as

Match the description to the term. 1. ancient people of the british isles normans 2. possible location of oldest known writing emigrate 3. a variety of a language celts 4. the study of word forms indus valley 5. to leave one's country morphology 6. invaded england in a.d. 1066 dialect