Question

Where are the strongest jet streams located? over high altitudes over land in the lower atmosphere far away from the equator

Answer 1

Jet streams are formed of the boundaries of enormous bodies of air.  

The strongest jet streams are the polar jets. And they are located at high altitudes (30000-39000 ft.) over sea level.

There are northern and southern polar streams.

There are northern streams (present in North America, Europe and Asia) and the Southern  mostly present in Antarctica).  

Jet streams are stronger during winter, because these are fast bodies of  moving air, they can turn into dangerous cyclones and typhoons.  

Answer 2

Answer:

over high altitudes

Explanation:

The strongest jet streams are located at 9 to 12 kilometers or roughly 30,000 feet above the sea level, these are the polar jet streams and because of these characteristics the correct answer would be above high altitudes. The other options are incorrect, because jetstreams are above the ground and circle the whole globe, meaning that it has nothing to do with being over land, or near or far the equator.