<span>Numerical age is the age of a rock or geological feature in years.
a. true
It can be determined using isotopes </span>
D:low income because its not that high of a country

The processes that take place on or near the surface of the earth that makes the surface wear away. They cause degradation and wearing away of the Earth's surface.
<h3><u>
Explore more!!</u></h3>
- The main types of exogenic processes are weathering, mass wasting, erosion, sedimentation.
- Weathering is the breaking down of rocks to form soil. They can be physical, chemical or biological.
- Erosion is the transportation of rock debris by geomorphic agents like running water, the wind, waves etc.
- Deposition is the end result of erosion.
- Sedimentation is the process of leaving sediment anywhere because of larger mass at the bottom level.