## Surviving Species

Climate change affects the habitats and environments of many species, some of which won’t be able to adapt fast enough to survive in their new habitats.

The graph shows the percentage of species driven extinct since 1500. Of the species that were around in 1500

a) Calculate the probability of a reptile species having gone extinct by 1900.

[1 marks]

b) Calculate the probability of an amphibian species not having gone extinct by 2018.

[1 marks]

c) Of a sample of 60,000 species alive in 1500, assuming equal numbers of amphibian, mammal, bird, reptile and fish species are included, find, by first taking an average, how many species you would expect to have not gone extinct by 2018.

[3 marks]

## Climate Striking Students

The pie chart shows information about students going to a ‘Fridays for Future’ climate strike.

3360 more female students went to the strike than male students.

a) Work out the total number of students at the climate strike.

[3 marks]

At the next ‘Fridays for Future’ climate strike, 20% more male and 12% more female students attended.

b) How many more students attended this strike?

[2 marks]

c) Draw an accurate pie chart representing the ratio of male to female students in the second climate strike, giving the angles subtended by the segments to the nearest degree.

[4 marks]

## Annual Carbon Dioxide Emissions

The table below shows information about the annual CO2 emissions from 140 cities.

a) Work out an estimate for the mean CO2 emissions across the 140 cities.

[3 marks]

b) Estimate the total amount of CO2 emitted from the 140 cities by using the mean value.

[1 mark]

c) Draw a frequency polygon representing the table.

[3 marks]

## There Is No Planet B

Here is a pie chart taken from Mike Berners-Lee’s book There is no Planet B.

a) Calculate angle x. (shown on graph in the fossil fuel section)

[2 marks]

b) The ratio of the percentages of manure and CH4 to methane and paddy fields to enteric emissions is 7:3:8. Complete the pie chart.

[3 marks]

## Reducing Biodiversity Loss

The graph from the IPBES Global Assessment Report on Biodiversity and Ecosystem Services shows 3 different scenarios for how we could reduce biodiversity loss by 2050. Each scenario prevents the same amount of biodiversity loss.

a) Look at the Global Technology scenario. What is the biggest measure that would be taken in this scenario?

[1 mark]

b) Look at all three scenarios together. Which scenario would involve reducing infrastructure expansion the most?

[1 mark]

c) What measure would be taken in the Consumption Change scenario that would not be taken in the scenarios of Global Technology or Decentralised Solutions?

[1 mark]

d) Using a ruler, work out the percentage decrease of increasing agricultural productivity when comparing the scenario of Global Technology to Decentralised Solutions.

[3 marks]

## A Council Questionnaire

Sean works for a town council.

He wants to find out how often people use recyling bins when throwing away paper.

He is going to use a questionnaire.

Design a suitable question for Sean to use in his questionnaire.

[2 marks]

## UK Energy Usage

The table gives information about how the UK used its energy in 2017.

CREDS calculations based on BEIS (2018)

 Sector Percentage of UK energy used by sector (%) Industry 17 Transport 40 Households 28 Other 15

a) Draw an accurate pie chart to show this information.

[3 marks]

In 2017, the UK used the equivalent of 141 million tonnes of oil for energy.

One year the government develops a new initiative to get more people to use electric buses.

The energy used by transport decreased by 15%.

The UK will use the same total amount of energy.

b) Express the amount of energy the UK will use for transport as a percentage of 141 million tonnes of oil equivalent.

[3 marks]

## CCS Container

Carbon capture and storage is method of removing carbon dioxide from the atmosphere and storing it as a liquid underground. Carbon capture and storage is one possible method of slowing climate change.

Throughout this question you may ignore the mass of the container and consider only the mass of the liquid carbon dioxide that it contains. The liquid carbon dioxide is stored in a cylindrical container of volume 3.8m3.

a) The density of liquid carbon dioxide is 1100kg/m3.

Work out the mass of the liquid carbon dioxide.

[2 marks]

The 3.8m3 cylinder container of liquid carbon dioxide has a base of radius 0.5m.

b) Work out the height of the cylinder. Give your answer to 3 significant figures.

[2 marks]

## A New Power Station

A new kind of gas-fired power station releases on average 1.73×104 kg of pure carbon dioxide (CO2) every day. It also uses the heat of exhaust gases to provide community heating so the carbon dioxide leaving the power station is at same temperature as the environment. The density of CO2 as it leaves the power station is 1.98 kg/m³.

a) What volume of pure CO2 will be emitted from the power station each day?

[2 marks]

The CO2 now enters the atmosphere and is ‘diluted’ by other air molecules and therefore occupies a larger volume. In the atmosphere, for every million (1000000) air molecules, there are 400 CO₂ molecules.

b) Work out the volume that the diluted CO2 will now take up in the atmosphere. Give your answer to 3sf.

[2 marks]

A new technology is added to the power station to capture this carbon dioxide and store it as a liquid.

c) The density of liquid carbon dioxide is 1100kg/m³.

Work out the volume that the amount carbon dioxide produced every day will occupy if stored as a liquid.

[2 marks]

A depleted oil field contains a reservoir of area 1150 m2 which is 150m deep. This reservoir could be used to store the liquid carbon dioxide.

d) Evaluate how many years’ worth of carbon dioxide emitted from the power station could be stored in this oil field. Give your answer to two significant figures.

[3 marks]

## Solar Panelling a House

A homeowner wishes to cover their roof with solar panels.

Their roof can be modelled as a prism with volume 24m3

The height of the triangular cross section is h.

If solar panels can only be placed on the 2 rectangular sections of the roof

a) Work out the area of roof that could be covered by solar panels. Give your answer to 2.s.f.

[4 marks]

A company provides solar panels that are 1.5m long and 1.0m high and cost £200 each, including installation.

b) If this is the only size of solar panels available, how much will it cost the homeowner to buy and install them?

[3 marks]