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Ainat [17]
3 years ago
13

If a fingerprint is discovered on a dark surface, what color fingerprint powder might be used?

Biology
2 answers:
Vera_Pavlovna [14]3 years ago
4 0
Gray....................

WITCHER [35]3 years ago
3 0

Whenever dusting a fingerprint with the fingerprint powder, it must be kept in mind that the color of the powder must contrast the color of the surface. When a fingerprint is discovered on the dark surface, then the fingerprint powder used must be of gray color, so that the print is easily visible when developed. The light color of gray will help the ridges of the print to stand out over the dark surface.

Hence, the correct answer is 'gray.'

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Fireflies emit flashes of light because of chemical reactions, which occur in their abdomens. The rate of the chemical reactions
damaskus [11]

Since the rate of flashing depends on the rate of reaction, it means that fireflies will flash slower during cold weather.

<h3>How does temperature affect rate of reactions?</h3>

Temperature affects the rate of reaction such that reactions are faster at high temperatures and slower at low temperatures.

Thus, since the rate of flashing in fireflies depends on the rate of reaction, cold temperature means that the rate of flashing will be low as compared to warm temperature.

In other words, fireflies will flash lower during cold weather and vice versa.

More on temperature and rate of reactions can be found here: brainly.com/question/16717828

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4 0
2 years ago
Scientific knowledge is always changing. At one time, the kingdom was the
Naddika [18.5K]

Answer:

D

Explanation:

Organisms can be separated into different classifications due to many differences phenotypically or genetically. As we have progressed, research has shown differences allowing us to see bacteria and archaea as different organisms.

8 0
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Jobisdone [24]

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A.

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