Look at the graph below. will mark brainliest

a graph is shown with absolute brightness shown on y axis and surface temperature in degree celsius shown on x axis. the dwarf stars are shown along a slanting line from coordinates 30,000 and minus 3 to 10,000 and minus 4. the main sequence stars are shown along a slanting line from coordinates 20,000 and minus 2 to 2,000 and minus 6. the giants are shown along a line parallel to the x axis from coordinates 5,000 and 2 to 2,000 and 3. the supergiants are shown along a line parallel to the x axis from coordinates 7,500 and 4 to 2,500 and 4. point a has coordinates 20,000 and minus 4. point b has coordinates 2,500 and minus 4. point c has coordinates 5,000 and 2. point d has coordinates 7,000 and 4.

which of the following stars is most likely to be blue?

star a
star b
star c
star d

most historians agree that gabriel mouton, the vicar of st. paul’s church in lyons, france, is the “founding father” of the metric system. he proposed a decimal system of measurement in 1670. mouton based it on the length of one minute of arc of a great circle of the earth (now called a nautical mile, 1852 meters). he also proposed the swing-length of a pendulum with a frequency of one beat per second as the unit of length (about 25 cm). a pendulum beating with this length would have been fairly easy to produce, thus facilitating the widespread distribution of uniform standards. over the years, his work was revised, improved, and extended by a number of french scientists.

the political sponsor of weights and measures reform in the french revolutionary national assembly was the bishop of autun, better known as talleyrand. under his auspices, the french academy appointed several committees to carry out the work of developing a usable system of weights and measures for france. one of the committees recommended a decimalized measurement system based upon a length equal to one ten-millionth of the length of a quadrant of the earth’s meridian (i.e., one ten-millionth of the distance between the equator and the north pole).

level 4 to level 2 : ))