Reference no: EM133176325

1. Use the following words and concepts and do a paragraph about the type of agriculture indicated in bold. Be sure to explain in the paragraph what each term means. Identify the negative or positive effect of each of the concepts and explain how the activity/feature results in the negative or positive impact.

a. SUBSISTENCE: Slash and burn, human labor, rain-fed, mix cropping.

b. SUSTAINABLE: Alley cropping, contour, crop, and livestock integration

c. INDUSTRIALISED: Monocropping, synthetic fertilizer, flood irrigation

2. For each of the following types of renewable energy: Solar, hydropower, wind, tidal, and ocean thermal

i. State what conditions would be required to make the generation of electricity viable

ii. State two disadvantages associated the generation of electricity using this method.

iii. Suggest a solution to mitigate the negative effect you identified in (ii)

3. Explain was meant by Salinization, suggest a possible cause of this problem and predict the ultimate result of it. Indicate one possible measure that can be used to restore salinized soils.

4. Distinguish between the following terms:

a. Contour farming and terracing

b. Strip cropping and alley cropping

c. Conventional and conservation tillage

d. Source reduction, reuse, and recycling (give an example of each)

e. Surface and sub-surface mining

f. Biomagnification and bioaccumulation

g. Geothermal and ocean thermal energy

5. Explain the meaning of the term desertification, describe the link between desertification and flood irrigation.