Soil & Food Test Review

Front

Topsoil is lost due to which process. 

Back

erosion

Front

What is the term for chemicals used to kill insects, weeds, and other pests?

Back

pesticides

Front

In biological pest control, what is used to control pests? Options: living organisms, chemical fertilizers, human beings, x-rays

Back

living organisms

Front

Which animal may be raised in aquaculture? Options: catfish, goat, cow, chicken

Back

catfish

Front

DDT is ____________ in the environment.  This means it doesn't break down/decompose.  It lasts a long time.

Back

persistent

Front

As a pesticide kills off weaker individuals and leaves stronger individuals, the gene pool of the pest changes. This leads to which problem below?

Back

genetic resistance

Front

Industrial Agriculture has many benefits. Which of the following is NOT a benefit associated with industrial agriculture? Options: The ratio of energy input to calorie output is low., Larger food production per hectare., Monoculture can be more efficient., Economy of scale can make the food less expensive.

Back

The ratio of energy input to calorie output is low.

Front

Mechanization of agriculture is advantageous for all of the following reasons EXCEPT: Machines encourage the growth of several types of plants in a single farm., There is an economic advantage if fuel prices are low., There is an economic advantage if cost of labor is high., Staple crops such as beans and corn are more economically harvestable.

Back

Staple crops such as beans and corn are more economically harvestable.

Front

Synthetic fertilizers have many advantages over traditional "organic" animal waste fertilizers. These include all of the following EXCEPT

Back

lack of nutrient runoff problems.

Front

Monocropping has a number of disadvantages. These include all of the following EXCEPT: erosion due to exposure of large areas of soil during planting., Pests are more likely to attack a monocrop due to the high concentration., Loss of habitat for natural pest predators.

Back

Nutrition and pesticide needs should be similar throughout a single crop.