Which option answers this correctly: which material is a good electrical conductor?

✅ A. Refraction of rays of sun passing through the atmosphere

✅ D. Gravity

a: Magnetism | b: Friction | c: Buoyancy | d: Gravity Read more

✅ A. Concave mirror

✅ C. Ole Roemer

✅ D. The Sun

a: Polaris | b: Sirius | c: Proxima Centauri | d: The Sun Read more

✅ C. Carbon dioxide

a: Oxygen | b: Nitrogen | c: Carbon dioxide | d: Hydrogen Read more

✅ D.  K2-18b

✅ B. Nitrogen

a: Argon | b: Nitrogen | c: Carbon dioxide | d: Oxygen Read more