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Cloud [144]
3 years ago
5

Review the following list and select either an "h" if the item is a hazard, a "b" if it's a benefit, or "hb" if it can be both a

hazard and a benefit. pyroclastic flows volcanic ash geothermal energy lahars lava flows volcanic materials (pumice, lava rock)
Chemistry
2 answers:
pshichka [43]3 years ago
8 0
Pyroclastic flows, lava flows, and lahars are hazardous 
geothermal energy is beneficial
<span>volcanic ash</span> and volcanic materials can be both hazardous and beneficial

This questions somewhat depends on what the opinion who ever wrote the question so I don't know if all of what I said is correct according to your who wrote this but is what I believe is correct.  

I hope this helps.  Let me know if anything is unclear.
Finger [1]3 years ago
4 0

The answers are

pyroclastic flows-H

volcanic ash-HB

geothermal energy-B

lahar-H

lava flows-H

volcanic materials (pumice, lava rock)-B

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3) List two other names for P-waves and for S-waves.
Dimas [21]
3. Other names for S- waves are secondary waves, shear waves, and sometimes elastic S-waves. Other names for P-waves are primary waves and compressional waves.
4. You need 3 stations, because scientists find the difference between the arrival times of the primary and the secondary waves at each of the 3 stations, then the time difference is used to determine the distance of the epicentre from each station. The greater the difference in time, the further away the epicentre is. A circle is drawn around each station, with a radius corresponding to the epicentre’s distance from that station. The point where the three circles meet is the epicentre. If you only had two stations, you could only predict the epicentre, as the point where all three circles meet wouldn’t be complete, you’d have to try and estimate where the third one would intercept. This would greaten the chance of error and isn’t as accurate.

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5 0
3 years ago
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Lorico [155]

Answer: susuus

hdhjhd

Explanation: sjsjsj

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3 0
3 years ago
What is the current in 160V current if the resistance is 20
Karo-lina-s [1.5K]

Answer:

Current, I = 8 A

Explanation:

We have,

Voltage, V = 160 V

Resistance, R = 20 ohms

It is required to find the current. The relation between current, voltage and resistance is called Ohm's law. It is given as :

V=IR

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I=\dfrac{V}{R}\\\\I=\dfrac{160}{20}\\\\I=8\ A

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7 0
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NNADVOKAT [17]

Answer: 5622.6g

Explanation:

Note: Kf for water is 1.86°C/m.

The simple calculation is in the attachment below.

7 0
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cestrela7 [59]
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7 0
3 years ago
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