Answer:
Can we take a moment to bask in the joy of how well-written A Raisin in the Sun is... Ok, moment over!
From act 1 scene 1, it's very clear that this family has issues simmering beneath the surface. The question shouldn't be what caused tension, it should be what <em>doesn't </em>cause tension, because Walter and Ruth argue about a large number of things. It's not a happy marriage, it seems.
When Ruth accuses Walter of keeping their son up by talking late at night, he complains, "That's what you mad about, ain’t it? The things I want to talk about with my friends just couldn’t be important in your mind, could they?"
The main issue between them, though, is money. It's underlying everything they argue about - Walter's association with Willy, Travis' ask for the 50 cents, Walter's late-night discussions with his "friends."
B. they help readers understand time has passed
Answer:
the Party has altered the records to reflect their version
To see Mercury with your naked eye is only possible when it is at its greatest "elongation" or basically when the angle of separation between the Sun or Mercury is at it's greatest value, however it is not always a promised success of viewing Mercury. It also depends on the phase of the plant to determine how bright it is!
Answer:
the point of view, is to aiding the masses in their needs
