Question

am fm the image above shows am and fm radio waves. 16. which one has a higher frequency? __ 17. which one has a higher amplitude? the image above shows convection currents in the atmosphere. 18. why does the warmer air rise? 19. why does the cooler air sink? __

Explanation:

Step1: Recall AM and FM wave properties

FM (Frequency - Modulated) radio waves have a higher frequency range compared to AM (Amplitude - Modulated) radio waves.

Step2: Analyze wave amplitude

AM radio waves typically have a higher amplitude as the information is carried by the amplitude variations.

Step3: Understand air - density and convection

Warmer air is less dense than cooler air. Less - dense substances rise in a gravitational field.

Step4: Understand air - density and sinking

Cooler air is denser than warmer air. Denser substances sink in a gravitational field.

Answer:

1. FM
2. AM
3. Warmer air is less dense.
4. Cooler air is denser.