D! all of the others are commonly used
Answer:
Divergent boundaries such as the mid-oceanic ridge system.
Explanation:
Divergent boundaries occur when plate boundaries pull away from each other. Molten rock or magma rise from the gap between the two plates, rising up to the sea floor where it cools down to form new crust. It is the mid-ocean ridges where you see the most magma produced and there has not been any other tectonic event or area that could match its procution since the Precambrian period.
Answer: b. possible soil creep
Explanation:
Erosion can be defined as the process in which the top layer of the soil is removed because of the action of the agents like wind, water, chemicals, and others. Possible soil creep no agent is mentioned responsible for the soil creep whether it is because of gravity, water, or wind. Evidence of a past debris indicate that the erosion has occurred and displaced the debris from its place. Rapid river can also become an agent in South America. Sand storm will involve the blow of sand with the action of wind in Sahara Desert.
A.) Place
Geographers begin to study a place by finding where it is on the map. Cardinal directions and longitude and latitude are used to find this.
