Quasars are:
A) white dwarfs that have undergone final collapse.
B) ancient, extremely high energy galaxies believed to have formed in the early universe.
C) a conglomeration of spiral galaxies.
D) a conglomeration of pulsars within a galaxy.

The poles appear to be slightly flattened in a robinson projection. question 1 options: true false

Fossils of glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? check all that apply.

Select the correct answer.look at this nineteenth-century illustration of london. which explanation best relates this illustration to changes in britain in the 1800s? a.factory workers in cities lost their livelihood because of the lack of housingb.industrialization narrowed the inccome gap between landowners and workers.c.the migration of workers from rural to urban areas resulted in overcrowded citiesd.the spread of railways allowed farmers to sell produce far from where it was grown.