Module 7 question set - Paris moore

docx

School

Miami University *

*We aren’t endorsed by this school

Course

121

Subject

Geography

Date

Oct 30, 2023

Type

docx

Pages

Uploaded by BarristerComputer4209

1. Explain why farmers: A) Till the soil. Tilling the soil breaks it up, lessens compaction, improves air and water penetration, eliminates weeds and soil insects, and adds organic matter to the soil. B) Irrigate Provides water to dry, nutrient-rich areas that receive lots of sun. This converts vast tracts of formerly unusable land to agricultural use. C) Fertilize... All relative to crop production and crop yield. Replenishes nutrients that may be deficient. It enables the continual production of land and opens up previously unusable areas for the growth of crops. 2. A) Explain why soils in temperate regions are the most productive on Earth. There is a lot of organic matter (OM) in the soils in temperate zones. This is due to the fact that organic matter decomposes more quickly than it depositions. This much organic matter (OM) results in the highest crop productivity on Earth since it is essential to soil fertility.The soil is also more solid and erosion-resistant due to the high concentration of OM. B) Explain why tropical soils are considered "fragile" and are relatively infertile. There is less OM in tropical soils due to a quicker rate of soil breakdown than OM deposition, which makes tropical soils comparatively infertile. Additionally, the absence of organic matter (OM) in tropical soils renders them more vulnerable to erosion, making them 'fragile'.This is especially true given the potential for swift and severe erosion brought on by the intense tropical rains. 3. A) Define malnutrition. A condition known as malnutrition is defined as an inadequate intake of nutrients, which can result in health issues. B) Describe a reason for the existence of malnutrition in developed and underdeveloped countries. Underdeveloped countries: One of the main causes of malnutrition is poverty. Developed countries: high-calorie meals and obesity could be the cause of malnutrition. 4. A) Explain the basic causes for the formation of the 'Dust Bowl' in the 1930s Large scale of land exposure to wind erosion and drought B) Describe two ways (techniques) soil erosion may be prevented. Describe how they work to prevent erosion.

Crop rotation: planting various crops one after the other stops soil erosion. Planting cover crops helps to stop soil erosion since they cover the soil. 5. Explain the phrase 'We have traded fossil fuels for food' in terms of sustainability ( why are we "All Gonna Die" unless we change the way we grow our food? ). Because modern agriculture depends so heavily on fossil fuels for energy and power, there is a greater chance that the current agricultural system will fail owing to possible fossil fuel depletion. As a result, the current fossil fuel-based agriculture is unsustainable. 6. Describe 2 ways good farming practices aimed at soil conservation lead to better water quality. In order to better conserve soil and prevent runoff that could degrade water quality, cover crops can help cover soil.By lowering runoff, low-input irrigation also improves the quality of the water. 7. Describe two ways conventional agriculture impacts the environment. First, overfertilization may result in water contamination. Secondly, it may lead to levels of soil erosion that are alarming. 8. Describe two examples of how biotechnology may help prevent world hunger and starvation. Through the use of genetic modification technologies, plants with desired features that can withstand harsh environments can be produced, increasing crop yields and productivity.Biotech insecticides have the potential to decrease pest populations and increase crop yields. 9. Explain the importance of organic matter relative to soil fertility. ( What does organic matter do in the soil to enhance fertility? ) It reserves water and air while feeding soil organisms and storing nutrients for plants. All of them result in increased soil fertility.

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version