recycling and waste
True or False: You can recycle pizza boxes that are greasy.
False. Grease and food residue contaminate recyclables.
What is the most common source of renewable energy used for electricity production worldwide?
Solar energy.
What is the greenhouse effect?
The process by which certain gases trap heat in the Earth’s atmosphere, warming the planet.
What is biodiversity?
The variety of life on Earth, including different species, ecosystems, and genetic diversity.
What does the term "reduce, reuse, recycle" mean?
Minimizing waste by reducing consumption, reusing items, and recycling materials.
Which material takes the longest to decompose in a landfill?
Plastic (it can take hundreds to thousands of years to decompose).
What is the main benefit of wind energy?
It is a clean, renewable source of energy that doesn’t produce carbon emissions.
Which greenhouse gas is most associated with human activity?
Carbon dioxide (CO2).
What is the main cause of habitat loss worldwide?
Deforestation due to agriculture and urbanization.
What is one example of a sustainable farming practice?
Crop rotation, using organic fertilizers, or reducing pesticide use.
What is the process of turning food waste into nutrient-rich soil called?
Composting.
Which type of renewable energy uses the heat from the Earth’s core?
Geothermal energy.
What is the goal of the Paris Agreement signed in 2015?
To limit global warming to below 2°C, preferably to 1.5°C, above pre-industrial levels.
Which animal is known as a symbol of endangered species conservation and is often associated with habitat destruction due to deforestation?
The orangutan.
True or False: Using public transportation is a sustainable practice.
True. It reduces emissions and the number of vehicles on the road.
Name one reason why e-waste is harmful to the environment.
It contains toxic substances like lead and mercury, which can pollute the soil and water.
What is the key difference between solar thermal energy and solar photovoltaic (PV) energy?
Solar thermal energy uses sunlight to heat fluids for power generation, while PV uses sunlight to generate electricity through solar panels.
What is the term for the long-term rise in global temperatures due to human activities?
Global warming.
What is an invasive species?
A non-native species that disrupts local ecosystems and often causes harm to the environment.
What is the concept of a "circular economy"?
An economic model focused on reusing, recycling, and refurbishing materials to reduce waste and extend product life cycles.
What is the recycling symbol with a number 1, and what type of material does it represent?
PET (Polyethylene Terephthalate), usually found in plastic bottles.
Name one disadvantage of using biomass energy.
It can contribute to deforestation or increased greenhouse gas emissions if not managed properly.
How much has the average global temperature risen since the late 19th century?
Approximately 1°C (1.8°F).
Which human activity contributes most to the destruction of coral reefs?
Climate change (specifically ocean acidification and rising temperatures) and overfishing.
What does it mean to "buy local" and how does it support sustainability?
Purchasing goods produced locally to reduce carbon emissions from transportation and support local economies.