What is the term used to refer to the assumption that the milky way galaxy and other large galaxies formed mostly by collisions and combination of smaller galaxies and star clusters?

Which of the layers of the earth has the following three characteristics? i. it is made of molten rock. ii. it has currents that are constantly moving. iii. earth’s plates float on top of its currents.

Democratic vs democratic whats the difference? ?

Giving an address, such as "1000 elysian park avenue, los angeles, .ca, its an example of describing the