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ASHA 777 [7]
3 years ago
15

While washing a glass beaker, Sophia accidentally dropped the beaker in the sink. A piece of the broken glass cuts Sophia's fing

er. What can Sophia do to help stop the bleeding until her teacher arrives?
A. Wash the cut with any liquid that is nearby.
B. Press a clean towel or cloth firmly against the cut.
C. Nothing, let the blood coagulate and stop itself.
Biology
1 answer:
Mashutka [201]3 years ago
5 0
B press a clean towel or cloth firmly against the cut. you don't want the bleeding to continue and don't want to make the cut worse by putting any liquid in a lab, like acid that could easily be mistaken as water.
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<span>The person might have trouble seeing shades of red, blue, and/or green. Color-sensitive pigments in the cones of the eye are absent. These inabilities to see certain colors ends up leading to the person seeing the colors in question as a mixture of the same shade.</span>
5 0
3 years ago
Explain how building roads and parking lots in areas that were once fields can increase the risk of flooding.
pogonyaev

Answer:

well when u mess with a natural habitat it tends to do what's it's always has. like if that field always got flooded and u put a road there then obviously that road will be flooded when the time comes.

4 0
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A scientist studying the effects of radiation on DNA performs an experiment in which she exposes a sequence of nitrogen bases fo
Oksana_A [137]

Answer:

D. A nitrogen base has been added to the DNA molecule.  

Explanation:

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6 0
3 years ago
A communications satellite transmits a radio wave at a frequency of 9.4 x 10^9 Hz. What is the signal’s wavelength? Assume the w
sergejj [24]
To calculate this we will use the light equation:
c=λ*f

We have Frequency f=9.4* 10^{9}Hz.
We know that speed of light in vacuum is c =3.8* 10^{8} m/s.
Since a unit of speed of light is m/s, we can change the unit of frequency Hz to 1/s, since Hz means cycles per second (f=1/T).

So:
f=9.4* 10^{9}1/s
<span>c =3.8* 10^{8} m/s
</span>
<span>c=λ*f
</span>⇒ λ= \frac{c}{f}
⇒ λ= \frac{3.8* 10^{8}}{9.4* 10^{9}}
⇒ <span>λ</span>=0.04 m

5 0
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what is causing global warming a an increase in plate tectonic movement be the reversal of Earth's magnetic poles see if influxe
mezya [45]

Answer:

Changes in the composition of the atmosphere

Explanation:

Although this answer is very vague and generalized, it is the correct answer.

The increase in greenhouse gas emissions in the atmosphere from modern manufacturing and engineering has increase carbon dioxide and methane concentrations in the upper atmosphere. These gasses have a chemical composition that allows the absorption and release of longwave radiation back to the Earth's surface slowly increasing the global average temperature.

4 0
3 years ago
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