The land might degrade when it's cleared for farming.
When vegetations are cleared, the land will lost protection and become more prone to soil erosion. There would be no roots to bind the soil particles or keep the moisture in the soil, and soil particles would be eroded by transporting agencies like wind.
They would be especially easier to be carried away when they are dry and loose. Loosened soil particles will also cause it to be easily washed away by water.
Eventually, the soil will lost nutrients and the land would become no longer fertile. It might turn into badland, in worst case senarios, desertification would occur.
Hope it helps!
Agricultural intensification (c)
Answer:
The correct answer is:
A) They get a sense of the history of the area they are investigating
Explanation:
The age of the rocks located in the different layers is estimated because the absolute age is checked by measuring the radioactive decay of the isotopes of the elements.
The density of a rock depends on both its mineral composition and its porosity and various procedures are necessary to determine the reliable average values.
The value of the rocks is relative and is determined based on the objectives of the geological survey.
No they have not at all ever been I recall
