How many exact number of stars are there in the universe?

Why did activists use social media during the 2011 uprisings in egypt?

Do you think there should be more than two parties in the us political system, or does the us system work well?

Dr. lin, who is a developmental psychologist, believes that human development results from the dynamic interaction between developing persons and their surrounding society. dr. lin believes that culture is not something external that impinges on developing persons but is integral to their development every day via the social context. dr. lin is most likely working within the perspective.