earth and human activity Flashcards
(25 cards)
What is the primary greenhouse gas emitted by human activities?
Carbon dioxide (CO2)
True or False: Deforestation contributes to climate change.
True
Fill in the blank: The phenomenon of global warming is primarily caused by _____ emissions.
greenhouse gas
What are the two main sources of carbon emissions from human activity?
Burning fossil fuels and deforestation
Which sector is the largest source of global greenhouse gas emissions?
Energy sector
What is the term for the loss of biodiversity due to human activity?
Biodiversity loss
True or False: Urbanization has no impact on the natural environment.
False
What is the main impact of plastic pollution on marine life?
Ingestion and entanglement
Fill in the blank: The process of _____ refers to the gradual increase in Earth’s average temperature due to human activities.
climate change
What is the Kyoto Protocol?
An international treaty aimed at reducing greenhouse gas emissions.
Which gas is primarily responsible for acid rain?
Sulfur dioxide (SO2)
True or False: Renewable energy sources can help reduce human impact on the environment.
True
What is the term for the gradual change in climate patterns over time?
Climate change
What percentage of the world’s freshwater is used for agriculture?
Approximately 70%
Fill in the blank: _____ is the practice of planting trees to restore natural ecosystems.
Reforestation
What are the primary causes of soil degradation?
Deforestation, overgrazing, and agricultural practices
What role do wetlands play in the environment?
They act as natural water filters and provide habitat for wildlife.
True or False: Climate change has no effect on human health.
False
What is the main objective of the Paris Agreement?
To limit global warming to below 2 degrees Celsius.
Fill in the blank: The _____ effect is a natural process that warms the Earth’s surface.
greenhouse
What is one major consequence of melting polar ice caps?
Rising sea levels
What is the term for the increase in frequency and intensity of extreme weather events due to climate change?
Climate variability
True or False: Overfishing has no impact on ocean ecosystems.
False
What is an ecological footprint?
A measure of human demand on Earth’s ecosystems.
