As the earth has active tectonics we know that rocks are recycled and the oldest rocks may therefore just be the oldest rocks that have not been recycled yet. We know the true age of the earth by looking at radioactive isotopes of things like spacedust and meteors that formed at the same time as the earth as they have not been affected by the tectonic process of recycling here on Earth.
Answer: I think it's the third one: Letter Q points to the guard cell. Letter T points to the stomata and the response is most likely due to the humid tropical nature of the enviorment.
Because water is so good at storing heat energy, it is harder for organisms to experience a change in body temperature in harsher climates.
For those actually in relationships, shyness was negatively associated with intimacy satisfaction. Shyness was also positively associated with insecure romantic attachments, including greater attachment anxiety and attachment avoidance. For males especially, shyness also had a negative relationship with overall psychological well-being.
