Answer:
Most forgetting occurs after several days of learning the material.
Explanation:
The forgetting curve theory or hypothesis determines the decline of the memory power to time. This curve shows how some information are deleted or erased from the memory as time progresses if no step is taken to retain them.
This curves was given by Ebbinghaus. It states that most of learned knowledge are lost from the memory over days of time if not it is reviewed timely again and again.
Answer:
Soil is the uppermost layer of the earth
Soil conservation are those practises that, help prevent loss of top layer of the soil from erosion or over usage and other factors.
Such practises include crop rotation, bush fallowing, etc.
Some of the different ways soil formation take place include:
1. Rocks, through weathering and natural erosion
2. Mixing of rock materials with organic debris, made possible by the decay of plants.
Answer: Labeling each answer in order as A, B, C and D, the correct one is D, senators are elected direclty by each state´s voters.
Explanation: The 17th Amendment replaced the constitution's Article 1 section 3, clauses 1 and 2, which establish that each senator must be elected by each state´s legislature.
