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grigory [225]
3 years ago
10

Trump 2020 gvkjbhlnmahfdjganbhgydujk.h,gmfnbxdfncgmhj

Geography
2 answers:
inna [77]3 years ago
8 0

Answer:

Biden 2020

Explanation:

Tanya [424]3 years ago
5 0

Answer:

He is gonna loes

Explanation:

trump said if he loses he gonna move out of the country

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Anon25 [30]
Latitude 60 north, longitude 90 east, I’m not too sure tho that’s just what I think :)
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Can anyone help me with this African map test? Pleasee
Fiesta28 [93]

Answer:

1. Egypt

2. South Africa

3. Libya

4. Sudan

5. Kenya

6. Nigeria

7. ?

8. Rwanda

9. Arabian Sea

10. Strait of Gibraltar

11. I don't see it??

12. Sahara Desert

13. Sahel

14. Cape Town

15. ?

16. Lake Victoria

17. Atlantic Ocean

18. Indian Ocean

19. Mediterranean Sea

20. Niger River

21. Congo River

22. Nile River

23. Cairo

24. Pretoria

25. Mt. Kilimanjaro or Nairobi?

26. Lagos

27. I don't see 27??

28. Rabat

Explanation: I'm going to do some more research lol

3 0
2 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

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Sedimentary rock layer is the most complex
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An estimated 21,000 people have been affected by the cyclone, many of them children. In addition, at least 77 classrooms and six health centres have been partially or completely destroyed, leaving 2,000 students out of school and communities without access to health services.
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