Lightning heats the surrounding air to A. 300 deg Cent B. 3000 deg Cent C. 30000 deg Cent D. 300000 deg Cent

The correct answer is: C. 30000 deg Cent.

Lightning heats the surrounding air to temperatures of up to 30,000 degrees Celsius. This is hotter than the surface of the sun, which is about 5500 degrees Celsius. The high temperature of lightning causes the air to expand rapidly, which creates a shockwave that we hear as thunder.

Option A is incorrect because it is too low. The temperature of lightning is much higher than 300 degrees Celsius.

Option B is incorrect because it is too high. The temperature of lightning is not as high as 30,000 degrees Celsius.

Option D is incorrect because it is too high. The temperature of lightning is not as high as 300,000 degrees Celsius.