Paper 2: The challenge of resource management Flashcards
What are resources?
Resources are things that people use. Some are essential for survival while others are needed to maintain a standard of living.
How many calories does the average adult need to consume in a day?
2000-2500 calories
Identify 3 consequences of not eating enough calories each day.
Weight loss, lack of energy and difficult to find work. There are also a range of health issues that can be caused by not consuming enough calories such as malnutrition.
Identify two consequences of over eating.
Weight gain, high blood pressure, high cholesterol, cancer and difficulty getting a job.
How much water makes up a human body?
2/3rds
Why do our bodies need water?
Absorb nutrients and get rid of waste.
How much water should the average person consume each day?
1.6 to 2 litres per day.
Identify three other uses of water.
Cleaning, growing food, energy production, cleaning, cooling, raw material production, leisure activities and any other relevant uses.
What is a primary energy?
Primary energy includes sources such as fossil fuels or the wind that have been used to produce electricity.
Give an example of a primary energy
Coal, oil, gas, wind, solar, tidal and nuclear.
What is a secondary energy?
A secondary energy, such as electricity, is used to heat homes and offices, cook food and power transport.
Give an example of a secondary energy.
Electricity.
Is the global distribution of resources equal or unequal?
Unequal
What does the balance between the supply and demand of resources affect?
A country’s wealth and security.
What is food security?
When people have enough nutritious and affordable food to eat.
What is food insecurity?
Food insecurity is when people go hungry or are malnourished.
How do wealthier countries make food resources more affordable?
They import food and subsidise farming.
What is a food surplus?
A food surplus is when there is more than enough food to go around.
What is a food deficit?
When a country struggles to grow enough to feed people and cannot afford to subsidise farming or import more food.
There is a fixed amount of water on the planet. Identify two stores of water on Earth.
Oceans, ice caps, glaciers, lakes and reservoirs.
Some water circulates the planet. What is this process known as?
Water cycle
What is a water surplus?
When an area has more water than it needs.
What is a water deficit?
When an area has too little water to meet its needs.
How can a water surplus occur?
Increase in extreme weather events.
How can a water deficit occur?
A drought, increase in evaporation or rapid increase in population.
How can a water surplus cause problems?
It can lead to flooding.
How can a water deficit cause problems?
Crops cannot be irrigated, people suffer dehydration and water rationing can come into effect.
Which type of countries consume the most energy?
High income countries (HICs) and new emerging economies (NEEs)
Which types of countries use less energy?
Low income countries (LICs)
What is a fossil fuel?
A natural fuel such as coal or gas, formed in the geological past from the remains of living organisms.
What is energy insecurity?
When a country consumes more energy that it produces.
Countries that produce a high proportion of the energy they consume are said to be what?
Energy secure.
There is enough food to feed everyone on the planet. However, 1 billion people experience food insecurity. Why is this?
Food supply and consumption are not evenly distributed.
Does the U.K. have food security?
Yes
What proportion of the UKs food is imported?
40%
Why has there been growing demand for food imports in the U.K.?
People want to consume food out of season.
What is organic food?
Food produced without using any chemicals such as pesticides and fertilisers.
Why has the consumption of organic food increased in the U.K.?
More people want to eat food that hasn’t been sprayed with chemicals.