5.12 - Sustainability

What quantity of a living resource should be harvested in order to maximize profits while at the same time ensure regeneration of that population?

• 20% of carrying capacity

• a third of carrying capacity

• 50% of carrying capacity

• 80% of carrying capacity

What type of vertebrate species are most susceptible to human activity?

• birds

• fish

• mammals

• amphibians

What color in the graph represents areas that are predicted to have the greatest decline in food production?

• red

• orange

• yellow

• green

What is not a  major threat to food production.

• climate change 

• government tariffs

• groundwater depletion

• soil erosion

What is the overall trend in the graph that Mr. Smedes is showing?

• Global grain production per capita has continued to increase over time.

• Global grain production per capita has continually  decreased over time.

• Global grain production per capita has leveled off and shows signs of declining recently.

What does CO2 do that leads to global warming?

• Reflects the sun's energy back into the atmosphere

• Traps the sun's energy 

• It doesn't. We need all the CO2 we can get in the atmosphere for plants.

How does deforestation contribute to global climate change?

• Less trees using CO2 in photosynthesis

• Tree removal exposes more soil causing issues with erosion.

• It doesn't. That's fake news.

Which student in the table lives in a highly developed country?

• 1

• 2

• 3

• 4

• 5