Wst 371 Module 7 Quiz {20 Questions And Answers}

The practice of raising animals for food in high densities in feed lots can lead to ____. A. a reduction in soil erosion, resulting in more sustainable food production B. less available land for feeding overall C. a reduction in overgrazing, resulting in more sustainable food production D. an increase of the risk of human infection by bacteria that are resistant to antibiotics E. reduced feed requirements for the animals, meaning that it takes less energy to produce each pound of meat {Ans: D}Why did malaria control efforts in Malaysia once lead to cats being parachuted into affected areas? A. Cats help to consume mosquitoes, lowering their populations. B. As pesticides made their way through the food chain, cats died and rats that transmitted sylvatic plague increased in numbers. C. Cats were needed to help consume rats that were consuming roofs of houses after a rat population explosion due to unexpected consequences of pesticide use. D. As pesticides affected agricultural crops as well as pests, residents needed other sources of food. E. Cats were needed to keep aid workers company. {Ans: B}How can irrigation lead to salinization of soils? A. Water associated with irrigation flows through the soil.