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Fluoride has some antibacterial properties. It is most effective when used alone, as rinses can negate the effect of fluoride.

Download Excel-Based Problems MT-1 Template for Excel problems.xlsx Download MT-1 Template for Excel problems.xlsx Download and complete the Excel sheet containing 4 tabs with problems. Once you are finished, save and upload the file as your response to this question.  

Calculate the distance of a minute of longitude in miles at Athens, GA (34° 44’02.8″ N.)   (Hint: let’s assume the circumference at 34° N is 21,643 miles.)

The largest component in Earth’s atmosphere is

Earth’s atmosphere is held to the surface by .

What ratio represents one unit on the map to units on the actual Earth surface and  is true to any measuring units (cm, m, miles, ft, etc) as long as the same units are applied to both sides.  Ex- 1:63,360

The circumference of the Earth at the equator is

Calculate the distance of a second of longitude in miles at Athens, GA (34° 44’02.8″ N.)   (Hint: let’s assume the circumference at 34° N is 21,643 miles.)

The point at which the Earth is closest to the sun is known as

To find the solar angle, you must have the for the location and its .