181. PSR J0108-1431 is the closest known ____ to Earth?
✅ D. Pulsar
✅ D. Pulsar
✅ D. Mars
✅ B. Sulfuric acid
✅ A. Depth
✅ B. Transportation of oxygen
✅ B. petrol molecules do not have any hydrogen bond
✅ C. refraction of light
✅ C. Both of these
✅ A. Atmosphere
✅ A. The Frigid Zone
✅ A. Disease
✅ A. Ethanol
✅ C. Mosquito
✅ B. Earth rotation around its axis
✅ B. Pressure
✅ B. 4.5 to 6.2 million
✅ B. Red Sea
✅ D. Cobalt
✅ D. All of above
✅ B. Wolf-Rayet star