Skip to content

Course home

Question bank·9.2 Carbon dioxide and methane as greenhouse gases
Sign up

9.2 Carbon dioxide and methane as greenhouse gases

EasyMediumHard
1234567891011121314151617181920212223242526272829303132
Question 1

A local council is deciding whether action is needed to reduce methane emissions from landfill sites.

The council finds two reports.

FeatureReport PReport Q
Published byA scientific journalA company that operates landfill sites
MeasurementsMethane emissions from 15 landfill sites, measured monthly for four yearsMethane emissions from one landfill site, measured on one day
Checks before publicationIndependent experts in the same field examined the studyThe author checked the report; there was no independent examination

Evaluate which report the council should treat as the more reliable source of evidence. In your answer, name the checking process used for Report P.

[4]
Markscheme

9.2 Carbon dioxide and methane as greenhouse gases Questions

  1. GCSE
  2. /Chemistry
  3. /9.2 Carbon dioxide and methane as greenhouse gases

73 exam-style questions on AQA GCSE Chemistry 9.2 Carbon dioxide and methane as greenhouse gases, covering 9.2.1 Greenhouse gases, 9.2.2 Human activities which contribute to an increase in greenhouse gases in the, 9.2.3 Global climate change, and 9.2.4 The carbon footprint and its reduction. Each one has a worked solution and a mark scheme showing where the marks go.

More questions