1) if a star's temperature were doubled, its new luminosity would be the original luminosity.
a) 32
b) 8
c) 16
d) 2
2) the source of fuel used to make the sun shine is
a) uranium
b) oil
c) hydrogen
d) coal

What was one effect of european influence on southeast asia? new roads and railroads were constructed. rulers built palaces in the european architectural style. the vietnamese absorbed much of the european culture. the islamic religion spread throughout the region.

One of the brightest comets of the 20th century was comet hyakutake, which passed close to the sun in early 1996. the orbital period of this comet is estimated to be about 30,000 years. find the semi-major axis of this comet’s orbit. compare it to the average sun-pluto distance and to the distance to alpha centauri, the nearest star to the sun, which is 4.3 light-years distant.

Lake victoria lies on its southern border. true or false