Ch 15 Food and Agriculture

___________ pesticides are those that becomeconcentrated in organisms high on the food chain. 

Soilthat can support the growth of healthy plants is called ___________

Driving farm machinery over fields causingruts causes soil ________

Integratedpest management can include chemical pest control and  __________________

Usingrainwater to water crops is a good wayto reduce _____________

Increasesin crops during the green revolution resulted from thedevelopment of new crop ______

A ________ is a prolonged period duringwhich no rain falls in a particular region.

Cropproduction that is limited to meeting one family’s needs is known as _________ farming.

_________ pesticides are those that becomeconcentrated in organisms high on the food chain. 

Pestpopulations that damage plants become_______ to pesticides over time

Landwhere it is possible to grow crops is called ____________ land.

Cattle,goats, pigs, sheep, and chickens are all types of ____________

Animalspecies bred and managed for human use are referred to as ____________.

________ allows desirable traits in crops tobe transferred through the manipulation of genes 

Soil-retainingterraces and contour plowing are both examples of _______________

A ________ is an organism thatoccurs where it is not wanted.

Productsobtained from livestock include _________

_________ take less energy and money to produce than animals.

Applying __________ fertilizers is a modern agricultural method.

________ is the following farm practice that has the most dangerous effect on humans

Thehealth problem caused by not eating enough necessary nutrients is known as __________.

Theupper layer of soil consisting of rock particles, water, and organic matteris the ______

___________water usually comes from rivers andgroundwater.