Human,increase population and Overharvesting
<span>This allows the muscles to become active and use the glucose as a way of creating energy to be able to perform the exercise. The more the glucose is being used instead of stored, the more likely it will be that the person will be able to lower their overall levels and keep them in check.</span>
Examining fossil and pollen records Extracting deep ice cores from glaciers and the polar ice caps Examining growth rings on trees All of these methods provide clues to past temperature, precipitation, and wind patterns as well as the chemical make-up of the atmosphere.