The house of representatives has 435 members, each state gets a certain number of representatives based off of it's population. a state with a larger population gets more representatives. the Senate has 100, 2 from each state. these two make up Congress.
Scientists discovered that the rock that makes up the ocean floor lies in a pattern of magnetized Stripes. These 'stripes' hold a record of reversals in the Earth's magnetic field, as the rock is cooled, the iron bits line up in the direction of Earth's magnetic field.
Answer:
Cultural Diversity.
Explanation:
It's called Cultural Diversity when there is a diverse selection of anything.
events that occurred in the 20th century that were mainly because of the wars were the fall of four major monarchies (Russian, Austrian/Hungarian, German and Turkish) and conflicts in alliances (world war 1). and a huge event that occurred in the 20th century was the great depression.
sorry i didn't include all of it, that's as much as i could remember haha, hope this helped at least a little!