Please help me? Asap An object that has a parallax angle of one arcsecond is

1. a distance of one lightyear from Earth.
2. a distance of one-parsec from Earth.
3. a distance of one Astronomical Unit (AU) from Earth.
4.a distance of one kilometer form Earth.

Which statement about glaciers is true? a. glaciers can only be found high up in mountains. b. glaciers have snow all year round, except during july. c. there are two types of glaciers: alpine and continental. d. glaciers can only be found near earth's north and south poles.

South america is located within which hemisphere?

The poles appear to be slightly flattened in a robinson projection. question 1 options: true false