SC103-2 Review for Test 3

1.     One reason hunger still persists regardless of more food being produced today is

• Expensive fertilizers for farming      

• Lack of means for transporting food

• Uneven distribution of food

• Less land is being farmed

The ability to obtain sufficient, healthy food on a day-to-day basis is

• Food security

• Food insecurity

• Food nutrition

• Malnutrition

We are able to produce more food with less land today because of

• Improved seed varieties

• Improved fertilizers

• Improved pesticides

• All of the above

Famines are

• Small-scale food shortages

• Large-scale food shortages

• Overproduction of food

• subsistence food production

We can help reduce our Country's Carbon Footprint by

• Eating more meat      

• Drinking less water

• Becoming locavores

• Eating high on the food chain

    Most of our food comes from which soil horizon?

• A horizon

• B horizon

• C horizon

• E horizon

    The leading cause of soil loss or erosion is

• Wind

• Animals

• Tractors

• Water

 Modern agriculture runs on

• Animal power

• Solar power

• Oil

• Wind power

The layer of the atmosphere which has virtually no weather and no turbulence

• Thermosphere

• Mesosphere

•  Stratosphere

•  Troposphere

The layer of the atmosphere where weather happens                          

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere