Using the Earth's resources and sustainable development — AQA GCSE Chemistry
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Using the Earth's resources and sustainable development explained
Using the Earth's resources and sustainable development covers 6 specification points, including Humans use the Earth’s resources to provide… and Natural resources, supplemented by….
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Open a point below for its explanation and revision guidance.
Humans use the Earth’s resources to provide warmth, shelter, food and transport.
This statement asks you to connect everyday human needs to specific Earth resources. Warmth comes from burning wood, coal, oil or natural gas, or from electricity generated from these fuels. Shelter uses timber, limestone, clay, slate, metals and glass, all obtained from the Earth. Food depends on soil, water and sunlight, supported by agriculture. Transport relies on crude oil fractions such as petrol and diesel, plus metals and plastics for vehicles. For each need, name a resource, state whether it is finite or renewable, and explain how it is processed or used. A concrete example is crude oil, a finite resource, fractionally distilled to produce petrol for transport. This links resource use to sustainability and the need to conserve finite reserves.
Natural resources, supplemented by agriculture, provide food, timber, clothing and fuels.
This statement distinguishes natural resources from agricultural products and shows how both supply food, timber, clothing and fuels. Natural resources include fish, wild game, wood from forests, cotton, wool, crude oil and natural gas. Agriculture supplements these by farming crops, rearing livestock, and growing cotton or flax. Food comes from both fishing and farming; timber comes from managed forests; clothing uses cotton, wool and synthetic fibres; fuels include wood, biodiesel and fossil fuels. For each category, name a natural source and an agricultural source, and explain why agriculture is needed as demand grows. A concrete example is cotton, a natural plant fibre, supplemented by farmed cotton crops for textile production.
Finite resources from the Earth, oceans and atmosphere are processed to provide energy and materials.
This statement requires you to understand how finite resources—those used up faster than they are replaced—are extracted from the Earth, oceans and atmosphere, and processed into energy and materials. For example, crude oil from the Earth's crust is fractionally distilled to provide fuels for energy and petrochemical feedstocks for plastics. Metal ores are mined and processed via reduction to extract useful metals. While the oceans and atmosphere provide renewable resources like fresh water and oxygen, they also yield finite resources, such as offshore natural gas. You must distinguish between finite resources (e.g. fossil fuels, metal ores) and renewable resources (e.g. timber, fresh water). A concrete example is processing finite iron ore by heating with carbon to produce iron for construction.
Chemistry plays an important role in improving agricultural and industrial processes to provide new products and in sustainable development, which is development that meets the needs of current generations without compromising the ability of future generations to meet their own needs.
Chemistry underpins how we obtain and use resources. In agriculture, chemists develop fertilisers such as ammonium nitrate to replace nutrients removed by crops, and pesticides to protect yields, so more food can be grown on the same land. In industry, catalysts and improved processes raise efficiency and reduce waste, while new materials replace scarce natural ones. Sustainable development means meeting present needs without preventing future generations from meeting theirs. A useful test is to ask whether a process depletes a finite resource or harms the environment for later users. For example, using renewable feedstock and recycling reduces demand on finite crude oil, whereas burning it releases carbon dioxide and uses a resource that cannot be replaced on a human timescale.
Students should be able to: state examples of natural products that are supplemented or replaced by agricultural and synthetic products distinguish between finite and renewable resources given appropriate information.
Natural products are those obtained from plants, animals or the Earth without chemical synthesis. Examples include rubber from trees, cotton, wool, timber, and plant oils. Agricultural products are grown or farmed, such as crops and livestock, while synthetic products are made by chemical processes, such as synthetic rubber, nylon, polyester and fertilisers. A natural product is supplemented when it is still used but additional synthetic or agricultural material is produced alongside it; it is replaced when the synthetic product takes over its role. Finite resources, such as crude oil, coal, natural gas and metal ores, cannot be replaced as they are used. Renewable resources, such as timber, solar energy, wind and water, are replenished naturally at a rate that can match use. To distinguish them, ask whether the resource is being used faster than it is replaced.
Students should be able to: extract and interpret information about resources from charts, graphs and tables use orders of magnitude to evaluate the significance of data.
Resource data are often presented in charts, graphs and tables showing reserves, production rates or consumption over time. To extract information, read the axes, units and key carefully, then locate the required value. To interpret, describe the trend and use the data to compare resources. Orders of magnitude express how many powers of ten separate two values. For example, 10³ is one order of magnitude larger than 10², and 10⁶ is four orders of magnitude larger than 10². Comparing orders of magnitude shows whether a difference is significant: a resource lasting 10⁶ years is far more abundant than one lasting 10² years, whereas 10² and 3 × 10² differ by less than one order of magnitude. This helps judge which resource is genuinely more plentiful or which change is meaningful.
Your focus
- Match human needs to the Earth resources that supply them.
- Classify resources as finite or renewable.
- Describe how a named resource is processed for a specific use.
Show all 18 objectives
- Identify natural and agricultural sources for food, timber, clothing and fuels.
- Explain why agriculture supplements natural resources.
- Give a named example for each resource category.
- Define finite resources and distinguish them from renewable resources.
- Describe the processing method used for a named finite resource.
- Explain how processed finite resources provide energy or useful materials.
- Describe how chemistry improves agricultural and industrial processes to provide new products.
- Define sustainable development and apply the definition to a given process.
- Justify whether a named process supports sustainable development using resource and environmental evidence.
- State examples of natural products that are supplemented or replaced by agricultural and synthetic products.
- Classify a named resource as finite or renewable using given information.
- Explain the difference between supplementing and replacing a natural product.
- Extract specified values from charts, graphs and tables about resources.
- Interpret trends in resource data and support them with quoted values.
- Use orders of magnitude to compare data and judge whether differences are significant.
Using the Earth's resources and sustainable development exam tips
Marking Points
- Warmth is provided by burning fuels such as wood, coal, oil or natural gas, or by using electricity generated from them.
- Shelter uses materials such as timber, limestone, clay, slate, metals and glass obtained from the Earth.
- Food is provided by agriculture, which depends on soil, water and suitable climate conditions.
- Transport uses fuels such as petrol and diesel from crude oil, plus metals and plastics for vehicle manufacture.
- Resources can be classified as finite or renewable, and this affects how long they will last.
- Food is provided by natural resources such as fish and wild game, supplemented by agricultural crops and livestock.
- Timber is obtained from natural forests and from managed plantations grown through agriculture or forestry.
- Clothing uses natural fibres such as cotton and wool, supplemented by agricultural production of cotton and flax.
- Fuels include wood, crude oil and natural gas, supplemented by agricultural biofuels such as biodiesel.
- Agriculture supplements natural resources because natural supplies alone cannot meet growing human demand.
- Define finite resources as those that are being depleted faster than they are naturally replaced, such as fossil fuels and metal ores.
- Describe how crude oil (a finite resource from the Earth) is processed by fractional distillation and cracking to provide fuels and petrochemicals.
- Explain that metal ores are finite resources extracted from the Earth's crust and processed, often by reduction, to provide useful metals.
- Distinguish finite resources from renewable resources, noting that fresh water and atmospheric gases are generally considered renewable.
- State that finite resources will eventually run out, so their extraction, processing and use must be managed sustainably.
- Chemistry improves agricultural processes by producing fertilisers that replace nutrients such as nitrogen, phosphorus and potassium removed from soil by crops.
- Chemistry improves industrial processes by developing catalysts and new materials that increase efficiency and reduce waste.
- New products from chemistry include synthetic polymers, medicines and fuels that supplement or replace natural products.
- Sustainable development meets the needs of current generations without compromising the ability of future generations to meet their own needs.
- A process is not sustainable if it uses finite resources faster than they can be replaced or causes lasting environmental harm.
- Natural products include rubber, cotton, wool, timber and plant oils obtained from living organisms or the Earth.
- Agricultural products are grown or farmed, for example crops, livestock and biofuels.
- Synthetic products are made by chemical processes, for example synthetic rubber, nylon, polyester and fertilisers.
- A natural product is supplemented when synthetic or agricultural alternatives are used alongside it, and replaced when the alternative takes over its role.
- Finite resources such as crude oil, coal, natural gas and metal ores cannot be replaced as they are used.
- Renewable resources such as timber, solar energy, wind and water are replenished naturally and can be used repeatedly if managed carefully.
- Read the title, axes, units and key before extracting values from a chart, graph or table.
- Interpret a trend by describing whether values increase, decrease or remain constant and by quoting data points.
- An order of magnitude is a factor of 10, so 10³ is one order of magnitude greater than 10².
- Compare values by finding the ratio or the difference in powers of ten to judge significance.
- Use orders of magnitude to decide whether a difference in resource data is large enough to matter.
Examiner Tips
- 💡Link each human need to a named resource and state whether it is finite or renewable.
- 💡Use one clear example, such as crude oil to petrol for transport, to show the processing chain.
- 💡Avoid listing needs without resources, because the question asks how resources are used.
- 💡For each category, give one natural and one agricultural example to show the supplement relationship.
- 💡Use precise terms such as natural fibre, biofuel and managed forest.
- 💡Check that the example matches the category, because food, timber, clothing and fuels are distinct.
- 💡When asked for examples, clearly distinguish between finite resources (like crude oil) and renewable resources (like wood).
- 💡Link each processed product to a specific use, such as stating that fractional distillation of crude oil produces petrol for energy.
- 💡Define sustainable development in full, including both present needs and future generations, because partial definitions lose credit.
- 💡Link each example to a resource type, stating whether the resource is finite or renewable and why.
- 💡Use comparative language such as more efficient, less waste or lower demand when explaining how chemistry improves a process.
- 💡When asked to distinguish finite from renewable, give the definition of each and then apply it to the named resource.
- 💡For supplement or replace questions, name the natural product and the alternative, then state clearly which term applies and why.
- 💡Use data from the question, such as years of supply remaining or annual production, to support your classification.
- 💡Quote values with their units when extracting data, because unlabelled numbers are hard to credit.
- 💡Show your order-of-magnitude comparison as a ratio or a difference in powers of ten so the reasoning is visible.
- 💡If a graph has a non-linear scale, read intermediate values carefully rather than assuming equal spacing.
Common Mistakes
- Treating all Earth resources as renewable; the correction is that fossil fuels and metal ores are finite and will run out.
- Ignoring the processing step; the correction is that crude oil must be fractionally distilled before petrol can be used.
- Assuming food is independent of Earth resources; the correction is that agriculture depends on soil, water and nutrients from the Earth.
- Confusing natural resources with agricultural products; the correction is that agriculture is a human-managed supplement to naturally occurring resources.
- Stating that cotton is synthetic; the correction is that cotton is a natural plant fibre, while polyester is synthetic.
- Forgetting that fuels can be agricultural; the correction is that biodiesel and bioethanol are produced from crops.
- Confusing finite and renewable resources; the correction is to classify fossil fuels and metal ores as finite, and fresh water or timber as renewable.
- Confusing fractional distillation with cracking; the correction is that fractional distillation separates crude oil by boiling point, while cracking breaks larger molecules into smaller ones.
- Stating that metal ores are used directly; the correction is that ores must be processed, often by chemical reduction, to extract the useful metal.
- Treating sustainable development as simply recycling; the correction is that it is about balancing present needs with future needs, which may involve reducing use, reusing or using renewable resources.
- Assuming all synthetic products are worse than natural ones; the correction is that synthetic products can reduce demand on finite natural resources and can be made more efficiently.
- Confusing renewable with sustainable; the correction is that a renewable resource can still be used unsustainably if it is consumed faster than it is replaced.
- Calling all man-made materials synthetic while ignoring that agricultural products are also produced by humans; the correction is that agricultural products come from farming, whereas synthetic products come from chemical synthesis.
- Classifying nuclear fuel as renewable; the correction is that uranium is a finite metal ore.
- Assuming any resource that can regrow is automatically renewable regardless of use rate; the correction is that use must not exceed the rate of replacement.
- Reading a value from the wrong axis or ignoring the unit; the correction is to check the axis label and unit before quoting a number.
- Treating a small numerical difference as significant without comparing orders of magnitude; the correction is to express both values as powers of ten and compare.
- Describing a trend without quoting data; the correction is to support the description with at least two values from the chart, graph or table.