Question

1. which of the following is a renewable resource that can be replaced during human lifetimes (if well - managed)?

a) coal
b) oil
c) freshwater
d) natural gas

1. which example best shows using natural resources in a way that can be renewed and last over time for future generations (sustainability)?

a) introducing an invasive species to remove pests from crops
b) planting fast - growing trees and using only part of the forest at a time
c) burning more coal to get power for more factories
d) turning drinking water into private aquatic ecosystems like ponds

1. a town can either (a) clear nearby forest to build farms, or (b) increase crop yields on current farms using better seeds and improved fertilizer. which choice is more sustainable and why?

a) (a) — more land always gives more food, which will reduce hunger famines
b) (b) — use existing farmland better with new innovations to help protect forests
c) (a) — with growing populations and communities, forests are not important
d) neither choice (a or b) — both have a negative environmental effect

1. if many people in a country begin to use cars, commute long distances for work, and use more electricity from burning coal, what will likely happen to the countrys ecological footprint?

a) it will grow larger
b) it will decrease
c) it will stay the same
d) it will become zero

1. which statement best explains how a persons ecological footprint contributes to climate change?

a) higher use of fossil fuels increases greenhouse gas emissions into the atmosphere
b) leaving outdoor lighting on all day and night significantly warms the planet
c) eating a higher - plant diet increases carbon dioxide levels in the atmosphere
d) driving an electric bicycle or car that runs on renewable energy

Explanation:

1. Freshwater is a renewable resource if well - managed as it can be replenished through the water cycle. Coal, oil, and natural gas are fossil fuels which are non - renewable.
2. Planting fast - growing trees and using only part of the forest at a time is a sustainable practice as it allows the forest to regenerate. Introducing invasive species is harmful, burning coal is polluting, and turning drinking water into private aquatic ecosystems is not a sustainable use of water.
3. Increasing crop yields on current farms using better seeds and improved fertilizer is more sustainable as it uses existing land and reduces the need to clear forests. Clearing forests for farms has a large negative environmental impact.
4. If many people in a country begin to use cars, commute long distances, and use more electricity from burning coal, the ecological footprint will grow larger as more resources are consumed and more emissions are produced.
5. Higher use of fossil fuels increases greenhouse gas emissions into the atmosphere, which contributes to climate change. Leaving outdoor lighting on all day and night is wasteful but not the best explanation of the ecological footprint's contribution to climate change, and eating a higher - plant diet reduces the carbon footprint.

Answer:

1. c) Freshwater
2. b) Planting fast - growing trees and using only part of the forest at a time
3. b) (B) - Use existing farmland better with new innovations to help protect forests
4. a) It will grow larger
5. a) Higher use of fossil fuels increases greenhouse gas emissions into the atmosphere