Chapter 9 Check for Understanding

How does grain used for meat production and biofuel contribute to food insecurity?

• This grain cannot feed people because it is poisonous to everyone except farm animals.

• This grain can feed people, but they do not want it, so it is a waste.

• The grain used for this is not used to feed people even though it could be.

• This grain should not be produced at all because it cannot feed people.

Which of the following factors limit the expansion of the green revolution?

• need for high inputs of water

• none of these as there are no limits

• need for many synthetic fertilizers and pesticides

• the extremely high cost

What does GMO stand for?

• genie made organism

• genetically modified organism

• grandly molded organism

• grandfather made organism

Which of the following are possible health consequences of malnutrition?

• vulnerability to diseases

• paralysis in limbs

• slowing of physical and mental development

• vitamin and mineral deficiencies

How does agriculture cause soil pollution?

• The soil is polluted when it is disturbed for planting.

• The soil becomes polluted when irrigation causes salts to build up in the soil.

• The soil becomes polluted when plants are placed there that were not there originally.

• The soil is polluted by the addition of fertilizers to help crops grow faster.

Which of the following describe ways that pollution impacts food security?

• air pollution can lead to climate change which threatens crops

• pollution in the waterways makes it impossible to catch and serve fish

• contamination of the soil by industrial pollutants can create harmful conditions for crops

• the pollution in the grasslands makes it impossible to raise livestock there

Why are animals in Concentrated Animal Feeding Operations (CAFOs) fed growth hormones and antibiotics?

• to make sure they stay extra healthy

• to accelerate their growth so they can be butchered and sold more quickly

• to keep them from being too hungry

• to make sure they don't want to leave the facility

Which of the following are barriers to cleaning up soil that has been polluted from salinization?

• the methods are costly and time consuming

• the soil cannot be fixed once it becomes salty so there is no point to fixing it

• this requires the land the be taken out of production for years

• farmers don't feel like doing it because they don't care about the environment

Which of the following are possible health consequences of overnutrition?

• heart disease

• stroke

• vitamin and mineral deficiencies

• diabetes

How has the availability of natural resources such as clean water and fertile soil and natural hazards such as drought and erosion driven more sustainable food production processes?

• We discovered we have enough natural resources to last as long as we need them.

• We have had to rethink food production to limit its impact on natural resources.

• We have realized that we won't be able to grow food in the future.

• We decided we did not need to worry about natural resources and just keep doing what we're doing.