Which historical event does the beginning of the anglo-saxon period roughly correspond with? a. the norman invasion of britain b. the viking invasion of britain c. the roman pull-out from britain d. the battle of hastings

a sample of water is taken and kept in a beaker in a freezer at a constant temperature of 0°c. if the system is at dynamic equilibrium, which of these statements is true?  

bipartisan basally means two groups of people who dont agree with each other (republican and democrat) make an agreement or work with each other