By 1900 little theater had appeared in the united states

True

Explanation:

That is True I believe because The Little Theatre officially opened October 17, 1929.

the lines on a surface map are called isobars. isobars are lines of constant pressure which are measured in units called millibars. the numbers indicate the amount of air pressure, in millibars, that each line represents.

well not the inner core.. its made entirely of lava. the crust is obviosly not it. and the outer core is made of nickel so your answer would be a the mantle

hope this