Respuesta :
We lose 5 to 7 million ha of productive cropland per year to (A) erosion, over-irrigation, and overgrazing.
What are erosion, over-irrigation, and overgrazing?
- Erosion is the activity of surface processes that transfer soil, rock or dissolved material from one spot on the Earth's crust to another where it is deposited. Weathering, on the other hand, does not involve mobility.
- Over-irrigation wastes water increases energy use for pumping promotes nitrogen and other micronutrients leaching and wastes time. Over-irrigation significantly increases crop nitrogen requirements, fertilizer expenditures, and nitrogen losses to groundwater.
- Overgrazing occurs when plants are subjected to intensive grazing for a lengthy period of time or without adequate recovery time. It is caused by cattle in poorly managed agricultural applications, as well as game reserves and nature reserves.
- Every year, we lose 5–7 million acres of fertile crops due to (A) erosion, over-irrigation, and overgrazing.
Therefore, we lose 5 to 7 million ha of productive cropland per year to (A) erosion, over-irrigation, and overgrazing.
Know more about overgrazing here:
https://brainly.com/question/1216144
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Complete question:
We lose 5 to 7 million ha of productive cropland per year to ________.
a) erosion, over-irrigation, and overgrazing
b) damage from recreation activity
c) reforestation and wetland restoration
d) damage from pesticides
e) no-till cropping and shelterbelts
