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forsale [732]
3 years ago
11

When a counterfeit detection pen is used on an authentic bill, what color does it turn?

Biology
1 answer:
garik1379 [7]3 years ago
7 0
If the bill is counterfeit and the paper is wood-based, the iodine in the pen solution will react with the starch and leave a dark brown or black mark.
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Which of the following does NOT affect the flow of groundwater through an aquifer ? a. porosity C. gradient b . chemical weather
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Answer:

b . chemical weathering

Explanation:

Chemical weathering is not affected the flow of groundwater through an aquifer but affect by the porosity and permeability. The rate of groundwater flow is controlled by two properties of the rock which are porosity and permeability. Porosity is the percentage of void space in a rock while on the other hand, Permeability is the quality of being permeable means able to be penetrated or passed through by a liquid or gas.

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3 years ago
Daryl learns that millions of years ago, Earth's climate went through a
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Answer:

Plants that adapted to the cooler conditions would survive and rapidly evolve into a  new species.

Explanation:

<em>The plants will react by evolving through natural selection.</em>

The plant species that do not have the genes to adapt to the rapid change in climate would become extinct while those with adaptive genes will survive, reproduce, and contribute rapidly to the development of future generations.

In other words, natural selection selects for individuals with adaptive genes and ensures that such individuals reproduce more and give rise to future generations with the adaptive gene while individuals that are poorly adapted to the change in climate gradually fade off the population.

Hence, <u>the plants that adapted to the cooler conditions would survive and rapidly evolve into new species</u>.

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Duncan was a subject in a clinical study that was designed to determine the effects of certain diets on health. While participat
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