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Earth systems science unit 1 Questions with Detailed Verified Answers

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Earth systems science unit 1 Questions with Detailed Verified Answers

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Earth systems science unit 1 Questions with
Detailed Verified Answers


What is 162.5000 divided by 6.50? Express your answer using the appropriate number
of significant digits.
A. 25
B. 25.0
C. 25.00
D. 25.0000
Ans: B. 25.0


How many centimeters are in 1.5 kilometers?
A. 1,500,000
B. 150,000
C. 15,000
D. 1,500
Ans: B. 150,000


Express the number 4.30 x 10^4 in standard notation.
A. 0.00043
B. 4.300000
C. 43,000
D. 4,300,000
Ans: C. 43,000


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A nonzero digit in a number is
A. Always significant
B. Never significant
C. Significant only if the digit is to the left of the decimal point
D. Significant only if the digit is to right of the decimal point
Ans: A. Always significant


A zero between two significant digits in a number is
A. Never significant
B. Always significant
C. Significant only if the zero is to the left of the decimal point
D. Significant only if the zero is to the right of the decimal point
Ans: B. Always significant


The result of an addition or a subbtraction problem has the same number of decimal
places as _________
A. The measured number with the most significant digits
B. The measured number with the fewest significant digits
C. The measured number with the most decimal places
D. The measured number with the fewest decimal places
Ans: D. The measured number with the fewest decimal places


What is the standard format for writing a very small number in scientific notation?
A. a x 10^b
B. a x 10^-b
C. a /10^b
D. a/10^-b
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