We would have to use wind or another source
Answer:
4.- oh shoot my dad is calling me brb ok im back so i think the answer HOLY **** my girlfriend keeps nagging me
Explanation:
<h3><u>Answer;</u></h3>
D) Standing wave
<h3><u>Explanation;</u></h3>
- Standing wave also called stationary wave is a wave which oscillates in time but whose peak amplitude profile does not move in space.
- A standing wave pattern is a vibrational pattern created within a medium when the vibrational frequency of the source causes reflected waves from one end of the medium to interfere with incident waves from the source.
- Examples of standing waves include the vibration of a violin string and electron orbitals in an atom.
Answer:
They developed during the Cambrian time period, which was around 530 million years ago.
Explanation:
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