Explanation:
Electromagnetic waves are different from sound or water waves in such a way that water and sound waves are called mechanical waves that requires a material medium for their propagation.
Electromagnetic waves do no require a material medium for propagation.
- Electromagnetic waves are carried or transported by radiation and this can be passed through vacuums and different other materials.
- But mechanical waves such as water and sound waves requires a material medium for their propagation.
- They cannot pass through a vacuum.
I believe the answer is the second option.
b. the forces of attraction among them limit their motion.
Answer:
the height of a object or point relation to sea level or ground level
The answer is strong winds, i hoped this helped.
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