A geographic coordinate system<span> or a GCS uses a three-dimensional spherical surface to define certain locations on earth. Also, a GCS is often mistakenly called a datum, but a datum is just one part of a GCS.
Finally, a GCS includes a prime meridian, </span><span>an angular unit of measure, </span>and a datum :)
<h2>
The End of Trans-Saharan Trade Routes:</h2>
Explanation:
The factors that led to the end of trans-Saharan trade routes are:
- Civil unrest due to collapse of the Songhay Empire, the Timbuktu, by the Morracans in 1591
- The extreme desert conditions like extreme climates, excessive heat, lack of water and food etc made the travel logistics very tough. This made people opt for other transport systems
- Huge advancements made in maritime travel
- Exploration of West African trade routes
- Economic, political and social changes which led to the end of trans-Saharan trade routes
Because of genetic variation
Answer:
foresters and conservation scientists, forest and conservation technicians, forest and conservation workers and loggers.
Explanation:
Conservation scientists and foresters evaluate data on forest and soil quality, assessing damage to trees and forest lands caused by fires and logging activities. Forest conservation technicians assist foresters and scientists in protecting the animal and plant life in forests. They may also participate in forest nursery or logging operations. Forest and conservation workers perform basic tasks to maintain and improve the quality of the forest.
