The graph shows you three different projections of human population growth

Physics

1 answer:

MA_775_DIABLO [31]2 years ago

3 0

The answer is going to be B

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1 question 20points<br> How is frequency related to the sound we here

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Frequency is the vibration of noise and the vibration determines the pitch, which we depend on to be a pitch or frequency we can hear. If it's too high or too low our ears can't hear it

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Identify two potential improvements to the opal extraction process and explain how these improvements could minimize harm to the

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Answer

• Improving the environmental performances

• Developing Green Mining technology

Explanation

The effect to the environment caused by opal mining are; impact on soils and geology, clearing of native vegetation disrupting flora and fauna, change in land use and effects of air quality.

Opal mining is currently examining environmental impacts and adopting measures that mitigate the impacts making the process less destructive to the environment.

With the current commitment to sustainability, opal companies are investing funds for Green Mining as a positive way to impact the environment before and after mining.

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_____ help by supporting the plant and holding the leaves up to the light.

Semenov [28]

The answer is the stem.

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A string that is 3.6 m long is tied between two posts and plucked. The string produces a wave that has a frequency of 320 Hz and

marin [14]

To solve this problem it is necessary to apply the concepts related to wavelength depending on the frequency and speed. Mathematically, the wavelength can be expressed as

$\lambda = \frac{v}{f}$