How old is the world in hours?

Witch one is it soo it the the question b.a,b,c,d

Why the moon is not visible from earth during the new moon ?

Complete the activity titled "comparative urban environments." every city is shaped by different cultural forces. in one to two paragraphs, contrast the culture of two different cities from this activity: new york and buenos aires. what makes these cities stand apart from each other culturally? what is unique about each city’s attitude, language, habits, foods, or architecture?