5.4 - Impacts of Agriculture

Which is not a negative consequence of reduced biodiversity 

• soil erosion 

• increased susceptibility to pests

• reduced habitat diversity

• reduction in pollinators

The purpose of tilling is

• making planting easier

• soil compaction

• increasing organic matter

• reducing particulate matter. 

In slash and burn agriculture, nutrients are provided by 

• Ash from burning trees

• Carbon Dioxide added to the soil 

• N₂O added to the soil

• The Albedo effect

Which of the following are negative side effects of slash and burn agriculture.  (select all that apply) 

• Fine particulate pollution 

• Greenhouse gas emission 

• Increased temperature. 

• Loss of biodiversity

What is a major disadvantage of organic fertilizers compared to synthetic NPK fertilizers?

• Farmers can't adjust the relative amounts of nitrogen, phosphorus and potassium. 

• They contain organic matter

• They reduce the water holding capacity of the soil 

• They can result in rapid leaching of nutrients.