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.
Answer:Diarrhea
Explanation:
Influenza is a type of viral infection. It is commonly described as flu. Its symptoms are usually worse than normal cold.
Most of the symptoms of flu are not observed during the starting few days and one may transfer it to another person before knowing about it.
The main symptoms of flu includes headache, dry cough, muscular aches. It does not includes diarrhea.
If I recall correctly, I was taught:
The particles in the air (dust, smoke, etc.) increase in density the farther you look. Causing a "fog" effect as you look across large distances. Including shore to shore of an ocean.
False...whales are mammals...
hope this helps!
