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ivanzaharov [21]
2 years ago
8

What is the best course of action if you see a thunderstorm approaching?

Geography
1 answer:
GenaCL600 [577]2 years ago
8 0

Answer:

Secure all loose gear, hatches or ports. Determine your location and the best course back to shelter. Keep a sharp lookout for the other boats and obstructions.

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Carrie is three times as old as David. In five years, Carrie will be only twice as old as david. How old will Carrie be in five
sergeinik [125]

Answer: no answer

Explanation:

Because, there is not enough information

8 0
3 years ago
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What would happen if we did not use time zones?
Evgesh-ka [11]

Some of the world would be dark and some would be light so it would get confusing

3 0
3 years ago
Need help asap!
slava [35]

More than 75 percent

Explanation:

Let us carefully analyze this problem:

The half life of the rubidium isotope = 50 billion years

   The half-life of a radioactive isotope is the time it takes for it to decay to half of its original amount.

  Every 50years, we know that a rubidium isotope would split into half.

Initially when the isotope was formed, we would only have the parent atoms there. There wont be any daughter;

  ratio of parent to daughter = 100 : 0

When the isotope decays to half; we would have equal number of parent and daughter:

  ratio of parent to daughter at half life = 50 : 50

The age of the earth is about 4.6billion years;

this is;

          \frac{4.6}{50} x 100 = 9.2% of the half-life of the rubidium isotope.

At this time, we should know that only 9.2 percent of the daughter would have been formed.

The remaining parent would be 100 - 9.2 = 90.8% would still be left undecayed.

The ratio of parent to daughter  = 90.8 : 9.2

This is more than 75% of the parent

learn more

Radioactive decay brainly.com/question/10125168

#learnwithBrainly

4 0
3 years ago
Which term defines an acid?​
Basile [38]
Acid - an acid is a chemical species that donates protons for hydrogen ions and or excepts electrons. Most as it’s contain hydrogen atom bonded that can release (dissociate) to yield the cation and anion and water.


7 0
3 years ago
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Cattle ranching causes which of the following environmental problems in Central America and the Caribbean? A. Erosion B. Acid ra
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I think the answer youre looking for her is A

But, the runoff from the land causes water pollution and the methane in their feces causes air pollution and all in all can cause acid rain.

But i'd say they want answer A
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3 years ago
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