Air Pressure Isobars

What is the standard interval or spacing between isobars? 

• 2
• 4
• 5
• 10

Below is a sequence of isobars. Which value ise NOT accepted sequencing for isobars.
980, 982, 984, 986, 988, 992, 994, 996, 1000, 1004, 1006, 1008, 1010, 1012, 1014, 1016, 1020

• 980
• 992
• 1010
• 1020

Isobars are drawn in multiples of 2 mb spacing.

• True
• False

Isobars must not touch other isobars

• True
• False

Isobars are not allowed to return to their starting point.

• True
• False

Adjacent isobars tend to parallel each other.

• True
• False

 Isobars cannot end in the middle of the map.

• True
• False

 Isobars can end at the edge of the map.

• True
• False

a.  You should draw a 1012 isobar closer to a 1013 mb reading than a 1010 mb reading.

• True
• False

 You only need to label every other isobar on the map.

• True
• False