Human Impacts on Earth Systems Flashcards
(15 cards)
What is a renewable resource?
A resource that can be replenished naturally in a short time (e.g., solar, wind).
What is a nonrenewable resource?
A resource that forms over millions of years and is finite (e.g., coal, oil).
What is deforestation?
The clearing of forests, which leads to loss of biodiversity and more CO2 in the atmosphere.
What is urbanization?
Expansion of cities, often leading to habitat loss and increased pollution.
What is the greenhouse effect?
The trapping of heat in Earth’s atmosphere by gases like CO2 and CH4.
What is the main cause of increased atmospheric CO2?
Burning fossil fuels.
What is ocean acidification?
The lowering of ocean pH due to excess CO2 absorption.
What is a carbon footprint?
The total amount of greenhouse gases emitted by human activities.
What is sustainability?
Using resources in a way that doesn’t deplete them for future generations.W
What is the purpose of recycling?
To reduce waste, conserve resources, and decrease pollution.
What is the impact of agriculture on the environment?
Runoff pollution, habitat loss, and methane emissions from livestock.
What are some effects of global warming?
Melting ice, rising sea levels. stronger storms, droughts.
What is a natural hazard?
A naturally occurring event like an earthquake, volcano, or hurricane that impacts humans.
What are two ways to reduce the impact of natural disasters?
Early warning systems and improved building codes.
What is carbon sequestration?
Capturing and storing atmospheric CO2 to reduce climate change.
