Please HELP!!

Which choice correctly describes the waves in the electromagnetic spectrum?

1) The bands within the spectrum are made of fluctuating electric fields and have the same frequency and wavelength.

2) The bands within the spectrum are made of fluctuating electric and magnetic fields and have a wide range of frequencies and wavelengths.

3) The bands within the spectrum are made of fluctuating electric fields and have a wide range of frequencies and wavelengths.

4) The bands within the spectrum are made of fluctuating electric and magnetic fields and have the same frequency and wavelength.

I think is 2.

Explanation:

(The entire range of wavelengths or frequencies of electromagnetic radiation extending from gamma rays to the longest radio waves and including visible light)

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

pretty sure it's false