Changing Climate 1. Geography GCSE OCR B.

What does climate change mean?

• rising sea levels

• long-term change in the Earth’s global climate

• global warming

• global dimming

What is the Quaternary period?

• the last 26,000 years of the Earth’s history

• the last 100,000 years of the Earth’s history

• the last 1 million years of the Earth’s history

• the last 2.6 million years of the Earth’s history

How long do ice cores from Antarctica provide evidence about past global temperatures?

• over the last 5 million years

• over the last 800,000 years

• over the last 100,000 years

• over the last 10,000 years

Which 2 answers relate to the Milankovitch cycle for eccentricity?

• wobble

• circular and elliptical orbits

• cycle takes 26,000 years

• cycle takes 100,000 years

Name the 2 natural causes of climate change

• deforestation (burning wood)

• sunspot activity

• Milankovitch cycle-axial tilt

• vehicle exhaust gases

Methane contributes to the enhanced greenhouse effect. How is methane created?

• decay of organic waste in landfill sites

• burning of fossil fuels (coal, oil, gas)

• emitted from livestock and rice cultivation

• foam packaging

How is the temperature in the south-east of the UK expected to change by 2050?

• the south-east of the UK is expected to rise between 1ᵒC and 1.5ᵒC

• the south-east of the UK is expected to rise between 1.5ᵒC and 2ᵒC

• the south-east of the UK is expected to rise between 2ᵒC and 2.5ᵒC

How many degrees above pre-industrial levels does the Paris Climate Conference (COP21) aim to limit global warming to?

• 2ᵒC

• 3ᵒC

• 4ᵒC

Which of the following are global, social impacts of climate change?

• damage to coral reefs by storms and powerful waves will affect fish breeding grounds and ecosystems

• the numbers of environmental refugees – people who have lost their homes due to flooding – will increase. People from Tuvalu may have to move to New Zealand.

• damage could occur to coastal ecosystems such as mangrove swamps, which form natural barriers to storms

What happens to the Sun’s short wave radiation when it hits the Earth’s surface?

• It turns to long wave radiation and releases heat

• It turns to water vapour

• It creates clouds