Biology Unit 5 - Climate Change 0.0 / 5 ? BiologyEcology, ecosystems and environmental biologyA2/A-levelEdexcel Created by: lauraking20Created on: 11-06-17 10:09 What is climate change? Term used to describe a significant change in the weather of a region usually over a period of several decades 1 of 9 3 types of evidence for climate change? 1) Temp records 2) Dendrochronology 3) Peat bogs 2 of 9 How has temperature around the world been measured? Using thermometers 3 of 9 What do these records give? (+)/(-) ? A reliable but short term record of global temp changes 4 of 9 How many rings do most trees produce annually? 1 5 of 9 What does the thickness of the ring depend on Climate - warmer rings are thicker 6 of 9 Why are they thicker? Because the conditions for growth are better 7 of 9 What is persevered in peat bogs? Pollen 8 of 9 How do they show climate? If pollen from warm climates present then know that the year was a warmer one 9 of 9
Comments
No comments have yet been made