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Junior Cycle · Junior Cycle Science

Junior Cycle Science: Climate change

How often Climate change comes up on the Science papers, every year it was asked, and questions to try.

CL Asked on 4 of the last 6 Common Level papers, most recently in 2025. most years

Climate change, Common Level(7 marks)

Quick ones on Climate change.

(a)Which greenhouse gas is released in large amounts by cattle?
  1. Oxygen
  2. Methane
  3. Nitrogen
(b)Greenhouse gases warm the Earth because they?
  1. Make holes in the ozone layer
  2. Block sunlight from reaching Earth
  3. Trap heat in the atmosphere
(c)Which is a likely effect of climate change?
  1. Rising sea levels
  2. More solar eclipses
  3. Longer days in winter
Show the answers

(a) Methane

(b) Trap heat in the atmosphere

(c) Rising sea levels

Your turn: Common Level questions on Climate change.

Common Level

Asked on 4 of the last 6 Common Level papers, most recently in 2025. most years

Every paper, year by year

YearWhere it came up
2026Not asked
2025Q1, Q7
2024Not asked
2023Q11
2022Q14
2019Q8

Links open the State Examinations Commission’s paper for that year.

More Climate change questions

Climate change, 3 marks

Which action would help reduce Ireland's greenhouse gas emissions?

  1. Burning more peat for power
  2. Clearing forests for grazing
  3. Insulating homes to use less fuel
Show the answer

Insulating homes to use less fuel

Better insulation means less oil, gas or electricity is needed for heating, so less carbon dioxide. Burning peat releases it, and cutting forests removes trees that absorb it.

Climate change, 3 marks

Which natural earth process, not caused by humans, can change the climate?

  1. Burning peat for heat
  2. Large volcanic eruptions
  3. Driving diesel and petrol cars
Show the answer

Large volcanic eruptions

Big eruptions throw ash and gases high into the air, which can block sunlight and cool the planet for a year or two. Cars and burning peat are human factors.

Other Science topics

All of Junior Cycle Science