An economy based on trade
The first step in the formation of a hotspot volcano is lava erupts and forms an island. Magma<span> generated by the </span>hot spot<span> rises through the rigid plates of the </span>lithosphere<span> and produces active volcanoes at the Earth's surface.</span>
<u>From the given options which may suitably apply to the description of grid-lines of the map are
</u>
- They are measured in degrees
- They set up a reference system
- They divide Earth into four equal parts
Answers: Options A, B and E
<u>Explanation:
</u>
Option A describes that the grid-lines of the map are measure in degrees, which are very true as the grid are lined with angular measurement which thus be done in unit of angles and is in degrees only.
Option B says it develops the reference system which specifies about the area being plotted are grid depending upon the size which sets up the referential system of enumeration.
Option E is true as the world or the Earth has been divided into 4 equal parts through the Prime Meridian as the longitudinal line and Equator as the latitudinal line.
It is the Line of longitude
