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hammer [34]
4 years ago
11

What are 3 reasons that life expectancy has changed.

Health
2 answers:
m_a_m_a [10]4 years ago
6 0

Answer:

technolgy more discorys more sicence

Explanation:

Alekssandra [29.7K]4 years ago
3 0
The answer would be technology, science and the people
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Anon25 [30]

Answer:

I. Unidirectional microphone.

II. Bidirectional microphone.

III. Omnidirectional microphone.

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Sound are mechanical waves that are highly dependent on matter for their propagation and transmission.

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