The study of tree rings is called dendrochronology. Trees produce a single growth ring each year and by studying the size and composition of each ring scientists can get information about the age of the tree, available nutrients in the area, and general climatic conditions. A relatively small ring may indicate a year when there was very little rainfall and a larger ring indicates favourable conditions for plant growth.
Ice cores hold information on past global volcanic activity and past atmospheric conditions. Tiny bubbles in the ice cores give information on the concentration of gases in the atmosphere. Ice core data plays a key role in linking the increase in carbon dioxide concentrations to present day global warming.
According to climate change scientists, the burning of fossil fuels (coal, oil, and the like) results in the releasing of carbon dioxide atoms into the atmosphere, which can cloud the atmosphere, obscuring sunlight, as well as deplete the ozone layer, resulting in an increase in global temperature. This change could potentially cause some cooler temperature-loving species to either migrate in search of cooler locations or possibly die out if they are unable to move (biosphere). It could also cause water levels in some areas to decrease due to evaporation, or increase due to the releasing of water into the oceans resulting from the melting of our polar ice caps (hydrosphere).
Hope that helped! =)
Meant from urban nursing urns Billy in Ramesh Kent bloom turns still news cry up of bed tent or so jus TV un or rn
The answer is A as Adenine (A) pairs with Thymine (T) and Guanine (G) pairs with Cytosine (C)
