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mars1129 [50]
2 years ago
5

Base your answers to questions 62 through 65 on the graph below and on your knowledge of Earth science.

Geography
1 answer:
yaroslaw [1]2 years ago
8 0
After reviewing the graph you have given with the question, there are several reasons why carbon 14 can't be used to accurately determine the age of organic remains that are 1 million years old. 

A few of the reasons are; Carbon-14 has a short half life, after 1,000,000 years there wouldn't be enough carbon 14, and too little of the original radioactive sample would remain. Any of these choices are correct for the answer to the question you asked. 


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What are two problems associated with petroleum
Black_prince [1.1K]
Two major problems associated with petroleum products are the environmental hazards associated with its extraction from the earth and also the environmental impact of its burning which emits greenhouse gases into the atmosphere which has been shown to cause global warming and climate change. 
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3 years ago
Answer this question .please please in 25 min . It should be a Summary
lesya692 [45]

Answer:

Let "a", "b" and "с"  be sides of the triangle ("с" is the longest side).

The triangle will be:

right if       a² + b² = c²

аcute if     a² + b² > c²    

obtuse if   a² + b² < c²    

a.

a=3, b=4 and c=5

a² + b² = 3² + 4² = 9 + 16 = 25   and   c² = 5² = 25

25 = 25   ⇒  right triangle.

b.

a=5, b=6 and c=7

a² + b² = 5² + 6² = 25 + 36 = 61   and   c² = 7² = 49

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c.

a=8, b=9 and c=12

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Explanation:

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Select all of the answers that apply.
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