Edexcel A-Level Biology A2 5.16 Evidence for Climate Change Questions

Review climate evidence by interpreting pollen records, tree rings and volcanic effects on temperature, atmosphere and long-term climate patterns.

Exam points

use pollen records and tree rings to reconstruct past vegetation and environmental conditions
explain how volcanic eruptions alter temperature and climate through ash, sulfur dioxide and atmospheric light
calculate or interpret chronological evidence from pollen layers and tree-ring width, age and growth

[Maximum number: 4]

The graph shows the changes in mean temperature of the surface of the Earth from 1970 to 2017.

Change in mean temperature of the surface of the Earth/ ${ }^{\circ} \mathrm{C}$

Figure for Question Edexcel A-Level Biology A2 5.16 Evidence for Climate Change Questions question 1 — Edexcel A-Level Biology A2

(a)

Studying the width of tree rings provides evidence for climate change.

[ 4 ]

(i)

Which of the following involves the study of tree rings?

dendrochronology

entomology

epigenetics

proteomics

[ 1 ]

(ii)

Explain why the width of tree rings produced in 1970 would be different from the width of tree rings produced in 2010.

[ 3 ]

All question bank results loaded

Edexcel A-Level Biology A2 5.16 Evidence for Climate Change Questions question 1

Question (a)

Question (i)

Question (ii)