A scientist observes two stars in the night sky through a telescope. Star A is white in color and relatively dim. The star’s est
imated temperature is very high. Star B is red in color and extremely bright. The star’s temperature is low compared with other stars.
Help the scientist classify the two stars.
Star A is ( A. Black dwarf B. White dwarf C. Neutron star D. Red super-giant)
Star B is ( A. Black hole B. Red dwarf C. Red giant D. Supernova)
Star A is a neutron star and star B is a Red giant.
Explanation:
A neutron temperature are extremely hot objects having very high density and appear white in color. They emit large amount of x-rays. A white dwarf is relatively cooler than a neutron star. Black dwarfs emit no light. A red giant star is a cool star. Thus, star A must be a neutron star.
Star B is red in color and has low temperature and extremely bright. Therefore, it must be a red giant star. A blackhole is not visible, a red dwarf is not bright enough to be visible where as a supernova is an event in which a massive star explodes within a short interval of time.
It is a disaccharide, a molecule composed of two monosaccharides: glucose and fructose. Sucrose is produced naturally in plants, from which table sugar is refined. It has the molecular formula C12H22011.
equirements of food law, establishing the European Food Safety Authority (EFSA) and laying down procedures in matters of food safety (1). The Authority has its permanent seat in Parma, Italy. According to Article 28 (5) of the Regulation, the Authority's Scientific Committee and Scientific Panels are renewable every three years.
