The total number of parallels at an interval of 5° are
Answer by Student
The correct answer is (B) 36 .
Detailed Explanation by Teachoo
Let’s discuss all the options
- Option (A) 37 - This option is incorrect because it includes the equator as a parallel, which it is not. The equator is a reference line for measuring latitude, but it is not a parallel itself.
- Option (B) 36 - The first parallel after the equator is at 5°N or 5°S. The second parallel is at 10°N or 10°S. And so on.We can continue this process until we reach the poles at 90°N or 90°S.We can count how many parallels we have crossed in each direction. We have crossed 18 parallels in each direction, including the poles. So, the total number of parallels at an interval of 5° is 18 + 18 = 36 . This is correct.
- Option (C) 19 - This option is incorrect because it only counts the number of parallels in one hemisphere, not both. We need to double this number to get the total number of parallels at an interval of 5°.
- Option (D) 42 - This option is incorrect because it adds one extra parallel in each direction, which does not exist. There is no parallel at 95°N or 95°S, as these latitudes are beyond the poles.