Climate Changes 3.0 / 5 based on 1 rating ? BiologyEcology, ecosystems and environmental biologyA2/A-levelEdexcel Created by: francesca_321Created on: 07-09-15 19:20 What are the four ways to determine climate change? Long temperature records, Carbon dioxide levels, Pollen analysis, Dendrochronology. 1 of 13 What is Dendrochronology? The study of Tree rings 2 of 13 What is the benefits of long temperature change? You can see the general increase in temperature over a period of time, it is the only record of temperature change we have 3 of 13 What is one disadvantage of Long temperature records? The equipment used in the 1600s was not as advanced and may be unreliable. 4 of 13 WHat is another disadvantage? The readings don't go back longer than 1600s 5 of 13 What is Palynology? The study of living things, fossils, spores and pollen. 6 of 13 Where is Pollen tested? From Peat bogs 7 of 13 What is Peat? The accumilation of partially preserved matter, mainly the remains of dead plants 8 of 13 Why is the decay rate slow in peat bogs? In anaerobic conditions, the absense of bacteria, It is often acidic as well. 9 of 13 Why is pollen useful for telling Climate change? We can see what plant was well pollinated and see the conditions for that plant or tree. 10 of 13 Why are Pollen grains very resistant to decay? A tough outer layer 11 of 13 How can we assume the age of Peat bogs? By using Carbon -14 dating. 12 of 13 What do Peat bogs form in? Layers. 13 of 13
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