The primary greenhouse gases<span> in Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Without </span>greenhouse gases<span>, the average temperature of Earth's surface would be about −18 °C (0 °F), rather than the present average of 15 °C (59 °F).</span>
Answer:
It results from microscopic bumps and ridges
It causes a change in motion
It is opposite to the direction of the motion.
It is parallel to the surfaces that rub together.
Explanation:
Answer:

Explanation:
The relation between frequency and wavelength is shown below as:

c is the speed of light having value 
Given, Wavelength =
nm
Also, 1 m =
nm
So,
Wavelength =
m
Thus, Frequency is:


