Pest and Agriculture Quiz

diet

the type and amount of food that he/she eats

famine

widespread starvation caused by food shortages

malnutrition

occurs when people don’t consume enough calories or eat a sufficient amount of foods

proteins are made up of how many types of amino acids

20

how many non-essential amino acids/what are they

11- they can be produced by our bodies

how many essential amino acids/what are they

9- must be obtained from our diets

what are some examples of foods with essential amino acids

corn, grains, and beans

what is arable land

land that can be used to grow crops

when/what was the green revolution

1960s/massive improvement in crop yield

what is crop yield

how much food you can grow in a certain amount of land

what are subsistence farmers

farmers in poverty who only grow enough food for local use

what is plowing

mixing soil nutrients, loosening particles, uprooting weeds

what is pest control

killing organisms that harm crops

farming methods increase the rate of what

erosion

• plowing loosens the soil and removes plants that hold the soil in place

• water runoff from irrigation carries soil away

what is land degradation

human activity (overuse of soil for farming) damages the land so it can no longer support the local ecosystem

desertification

land becomes more desert-like

practices that minimize soil erosion examples

soil retaining terraces

drip irrigation

contour plowing; plowing across rather than up a slope

no-till farming; seeds of new crop are planted in remains of old

crop rotation

cover crop

pesticides

chemicals used to kill pests

what are the purpose of pesticides

improve crop yields

what are refuge fields

planted to slow pest development to pesticide resistance, supplies a source of non-mutant insects to mate with possible resistant insects to produce non-resistant offspring

what is crop rotation

can reduce pesticide use- rotating the soil so nutrients get a break between crops

integrated pest management (IPM)

developed to each crop and includes a mixture of pest control methods that are used at specific times in the growing season based on pest activity