Food Security

Since 1960, our ability to produce food has grown faster than the human population.

• True

• False

Which of the following is NOT a way we increased food production?

• Devoting more fossil fuel energy to agriculture.

• Planting and harvesting less frequently.

• Using irrigation, fertilizers, and pesticides.

• Increasing the amount of cultivated land.

Food production has been increased by which two methods?

• Use of improved seeds and fertilizers

• Manual ploughing and traditional irrigation

• Use of pesticides and crop rotation

• Shifting cultivation and slash-and-burn methods

We can continue to produce enough food under the circumstances of increasing population and decreasing cropland.

• True

• False

Making the food supply secure depends on maintaining healthy soil and water, protecting the biodiversity of food sources, and _________

• ensuring the safe distribution of food

• increasing the use of chemical fertilizers

• reducing the number of food sources

• ignoring water conservation

What are organisms that have had their DNA modified called?

• Genetically modified (GM) organisms

• Natural organisms

• Wild-type organisms

• Organic organisms

Scientists place genes that code for desired traits into the genomes of organisms lacking those _____

• traits

• cells

• enzymes

• chromosomes

Which of the following is NOT a commonly engineered trait in crop plants?

• Rapid growth

• Pest resistance

• Frost tolerance

• Color change

Herbicide-resistant crops encourage _____ conservation.

• tillage

• water

• energy

• soil

What is a feedlot? A feedlot is an alternative to open grazing in which ________ food is delivered to a concentrated group of livestock or poultry.

• energy-rich

• fiber-poor

• water-based

• mineral-heavy