Answer:
That for years scientists have build up and found discoveries that led to recent discoveries brought by previous scientists
Explanation:
The way I remember the diffrence between longitude and latitude is that latitude sounds like ladder sabe ladders have the step racks / horizontal.
Answer:
Contour farming
Explanation:
I think it would be contour farming mostly because none of the others seem to be done on ridges or slopes.
3. Helps protect life on earth
The spread began in the 7th to 9th century, originally brought to North Africa under the Umayyad Dynasty. Trade networks were extensive, spanning through north and west Africa which created a medium in which islam peacefully spread through the merchant class.
