Almost all characteristics of a star are determined by its position in its galaxy

closeness to other stars

initial mass

Which stage comes first in the life cycle of a high-mass star?

red giant

white dwarf

protostar

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

Write the balanced equation for a reaction between aqueous nitric acid (hno3) and solid lithium metal (this is a single replacement reaction)

An observation that requires measurement is called quantitative observable or qualitative