Questions at random?

1. The chemical makeup of a star's surface is usually inferred:


a. by spectroscopy of the light emitted by the star.


b. by taking a sample of that surface with a space probe.


c. by theoretical methods, considering the evolution of the star.


d. by measuring the chemical elements present in the solar wind.





2. What is the cellular granulation pattern seen on the visible surface of the sun?


a. the cells are regions of nuclear energy generation in the Sun's photosphere.


b. the cells are the base of a circulation pattern that extends from the photosphere to the outer corona.


c. each cell is a region of stronger magnetic field, which compresses and heats the gas within it.


d. the cells are the tops of rising blobs of hot gas in the Sun's convective interior.

Questions at random?
OMG I am so in the wrong area sorry.


1.b


2.c.


How'd I do Both wrong?
Reply:1. a





2. I'd go with d
Reply:1. a. ; 2. d.





These questions make me crazy. I can't type, so I'm never first, but in this case I'm third [not bad]. Right answers too, by the way.