They are both are types of explanations.
If the dragonflies consume autotrophs, then they are at the second trophic level. However, if they consume herbivores, then they are at the third or higher trophic level.
Need more information to determine.
Oxygen-16 atomic number is 8 so it has 8 protons. Its atomic weight is 16 so 16-8 = 8 neutrons.
<span>This is a positive feedback. These episodes make the next glacial period even more severe and long-lasting than the one prior. This is due to the reflectance of the surface of the land having a positive relationship with how much energy is absorbed: as the reflectance increases, absorption decreases, and the glacial period increases in severity.</span>
