Which lines measure how far north or south a location is from the equator

Longitude

To easily remember latitude and longitude, think of the beginning of latitude as “lat”and the beginning of ladder “lad”. They sound similar and are both going up and down. Longitude can be the bars on the ladder. Hope this helps.

The correct answer is: latitude lines.

Hope this helps!

Nation of conflicting ethnic groups

The answer is c, i, iii, and iv. this is because farming and mining deal with harvesting raw materials, construction work falls under manufacturing, and piloting a plane is a service. ii is wrong because making bread is using  raw materials to produce goods, which would fall under the secondary sector, not primary.