Question

36. The Sun is primarily made of ___ hydrogen B) helium C) hydrogen and helium D) nitrogen 37. Blue is associated with_ wavelengths. A) long B) medium C) short D) red 38. Our Sun is . Aaverage in size B) larger than most stars C) smaller than most stars D) hotter than most stars 39. A_ is formed in a Supernova A) black dwarf B) white dwarf C) green giant D) black hole or neutron star 40. The center of the Milky Way is thought to _. A) be empty B) be cold C) be made of planets D) have a massive black hole 41. Our Sun is located in _ _ of the Milky Way. A) center B) the halo C) edge of a spiral arm D) just out side the Milky Way 42. In a Black hole the _ A) escape velocity is less than the speed of light B) escape velocity is more than the speed of light C) all the elements are present in their Earth structure D) the core is composed of all electrons

Answer 1

(36) (A) hydrogen Sun mode top of 90%. Hydrogen 287. → Helicom. BSC) shorten apo wavelength AS Blue (400-500mm Short Green (500-600mm - medium Red (600-700) nm Long (38) (A) Avenge in size . * because there are some smallen as well as some langen stone then Sun (34) (B) white dwants white dwarft accumulates too much Matten, having too much matten causes the stan to explode resulting a supennova. No 1 ) have a massive black hole '* it's name is Sagittanius A* M1) (c) edge of a spiral arm sun is located the Orion Anm of the milk way. It's a minon Spiral amem. 2) 6) escape velocity is more then speed of light * Anything having escope velocity greaten then spoed of light 23 called black hole eje