Water Resources 💧
What percentage of Earth’s water is freshwater?
About 3%
What gas do trees absorb that helps clean the air?
Carbon dioxide
What is soil erosion?
Soil being moved by wind or water
What is a renewable energy source?
Solar, wind, or water power
What is stewardship?
Taking care of Earth’s resources responsibly
Name the 3 parts of the water cycle.
Evaporation, Condensation, Precipitation
Name one major cause of air pollution.
Burning fossil fuels (cars, factories)
Name one cause of erosion.
Deforestation, overgrazing, or construction
What does it mean to conserve energy?
Use it wisely to reduce waste
Why should we protect habitats?
To keep ecosystems balanced and support biodiversity
What causes most water pollution?
Runoff with chemicals/waste
How does air pollution affect living things?
Causes breathing problems, harms plants and animals
How can farmers protect soil from erosion?
Plant cover crops, use contour farming, or build terraces
Why are fossil fuels nonrenewable?
They take millions of years to form and can’t be quickly replaced
How do scientists monitor the environment?
Test water, soil, and air quality over time
Give one way to conserve water.
Turn off tap, fix leaks, rain barrels
Name one clean energy source that reduces air pollution.
Wind, solar, or hydroelectric power
Why is topsoil important?
It holds nutrients and water plants need to grow
Give one example of reusing or recycling materials.
Turning jars into containers, composting, recycling cans
Name two actions that make you a good Earth steward.
Recycling, planting trees, conserving water, reducing waste
Why does conserving water help protect other natural resources?
Using less water reduces energy use (less pumping/heating) and protects habitats.
Explain how air quality can affect water and land resources.
Air pollutants cause acid rain, which damages soil and pollutes water.
How can poor land use affect rivers and lakes?
Eroded soil and sediment can pollute and clog waterways.
How does using renewable energy protect air and water?
It reduces pollution and greenhouse gases from burning fossil fuels.
Explain how protecting one of Earth’s resources helps protect the others.
Example: Protecting forests prevents erosion (land), keeps water clean, and improves air quality.