Renewable Resources
What is a renewable resource? Give one example.
A natural resource that can be replenished naturally over time.
Ex. Solar energy
Define pollution and name one type.
Pollution is the contamination of the environment by harmful substances. Example: Air pollution.
What are the layers of soil?
The main layers are litter, topsoil, subsoil, and bedrock.
What is an environmental issue?
A problem caused by human activity that harms nature. Example: Climate change.
What does biodiversity mean?
The variety of living organisms in an area.
Why are fossil fuels not considered renewable?
They take millions of years to form and cannot be replaced in a human lifetime.
How does air pollution affect human health?
Breathing problems, asthma, and lung disease.
What is the importance of topsoil?
It contains nutrients that plants need to grow.
How does deforestation affect the environment?
It destroys animal habitats, increases carbon dioxide, and leads to soil erosion.
Why is biodiversity important for an ecosystem?
It helps maintain balance and resilience in the environment.
How does hydroelectric power generate electricity?
Moving water spins a turbine, which powers a generator to create electricity.
What human activities cause water pollution?
Dumping chemicals, oil spills, and plastic waste.
What is erosion and what causes it?
It happens when wind, water, or human activities remove the topsoil.
What happens when too many chemicals are used on farms?
They can wash into rivers, polluting water and harming wildlife.
What is one way humans negatively affect biodiversity?
Habitat destruction, pollution, and overhunting.
What are some challenges of using solar energy?
It depends on sunlight, can be expensive, and requires large areas for panels.
Describe one law or policy that helps reduce pollution.
The Clean Air Act regulates air emissions to reduce pollution.
How does planting trees help prevent soil erosion?
Tree roots hold the soil in place and slow down water runoff.
What is one effect of climate change?
Rising global temperatures, which can lead to melting ice caps and extreme weather.
How does protecting endangered species help biodiversity?
It prevents species from going extinct and keeps ecosystems stable.
Your town wants to switch to renewable energy. Which type would work best and why?
Research and explain a real-world example of a pollution problem and how it was solved.
The Great Smog of London (1952) led to the Clean Air Act, which reduced coal burning and improved air quality.
Farmers rotate their crops each year. How does this help conserve soil?
It keeps the soil healthy by preventing nutrient loss.
How can people help reduce their impact on the environment?
Recycling, using less water, planting trees, and reducing energy use.
What is one way humans can protect biodiversity?
Creating wildlife reserves or reducing pollution.