Protostars are difficult to observe because . a. they are surrounded by cocoons of gas and dust. b. they radiate mainly in the ultraviolet part of the spectrum. c. they are too far away to be observed from the Earth the protostar stage is way too short (less than 1 year)

It is reasonable to assume that nations with a low total fertility rate (tfr) and a modest amount of population growth are in

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?

Plzz on what physical process is responsible for the creation of volcanoes, earthquakes and ocean trenches at the plate margins?