Ineed some with this science question.

how do atoms form a new substance?

a: by sharing electrons with each other

b: by losing neutrons to each other

c: by losing electrons

d: by gaining electrons from each other

How did shawn mendes change the world? (need this for biography homework❤)

This is a form of government run by elected leaders. this is a type of government in which a group of individual states are united under astrong, central government. this is a system of government in which the people participate directly in making allpublic policy. this is form of government in which a monarch is the head of state but his or her powersare restricted by law, usually within a parliamentary system. in this type of government, the elected head of the executive branch acts independentlyof the legislative and judicial branches. in this type of government, there is no clear-cut separation of powers between thelegislative and executive branches, though the legislative has most of the governmentalpower. in this type of government, the institutions of the state are governed as a single unit, with one constitutionally created legislature. this is a type of government in which power is held by a single, self-appointed ruler.

Portraits are considered extremely important in early history because they were ?