Spheres
What is the lithosphere?
The solid outer part of the Earth, consisting of the crust and upper mantle.
What is an ecosystem?
An ecosystem is a community of living organisms interacting with each other and their physical environment.
What is the relationship between climate and biomes?
Climate determines the types of biomes that exist in a particular area, influencing temperature, precipitation, and seasonal variations.
What is the role of soils in biomes?
To provide nutrients, support plant growth, and regulate water cycles.
What is the aim of sustainability?
To meet the needs of the present without compromising the ability of future generations to meet their own needs.
What is the atmosphere?
The layer of gases surrounding the Earth
What are two interrelationships in an ecosystem?
E.g. Predator-prey relationships; mutualism (ex. bees pollinating flowers)
What factors influence climate?
Elevation, latitude, proximity to water bodies, and prevailing winds.
How do soils affect plant growth?
Supplying essential nutrients, anchoring plants, and retaining moisture
What is sustainable development?
Development that balances economic growth, environmental protection, and social equity.
What is the hydrosphere?
All the water on Earth
What is a biome?
A large geographic area with similar life forms and environmental conditions
Shifting ranges, altering species composition, and changing seasonal patterns
What are soil horizons?
Distinct layers within the soil profile, each with different characteristics and compositions.
How are sustainability and environment related?
Sustainable practices aim to protect natural resources and ecosystems while promoting human well-being
What is the biosphere?
All living organisms
How do ecosystems support biodiversity?
Providing habitats, food, and resources necessary for various species to thrive.
What role do oceans play in climate?
Regulating temperatures, influencing weather patterns, and absorbing carbon dioxide
Removing topsoil, which cna lead to decreased fertility and increased sedimentation in water bodies.
Name an example of a sustainable practice
Name an interaction between the spheres.
E.g. plants (biosphere) absorb carbon dioxide (atmosphere) and release oxygen back into it.
Why is biodiversity crucial for ecosystems?
Enhances resilience, productivity, and the ability to recover from disturbances.
How do human activities affect biomes?
Deforestation, urbanisation, pollution, and climate change, leading to habitat loss and species extinction
Why is soil conservation important?
Maintaining soil health, preventing erosion, and ensuring sustainable agricultural practices
Why is protecting biodiversity essential for sustainability?
Biodiversity contributes to ecosystem services, resilience and the oveerall health of the planet.