The correct option is D.
Noble gases are very stable, because they have eight electrons in their outermost shells. This is called octet form. Other elements that do not have the octet form try to achieve the form by forming bonds with other elements. Because of their stability, noble gas are chemically inert, that is, they do not undergo chemical reactions with other elements.
Answer:
The figure 54.3 shows an example of a model which compares relative species richness and species diversity of these two coffee plantations.
According to this model, we can see that the species diversity in the clear-cut plantation is a lot lesser as compared to the coffee plant which was planted int the natural forest. The species diversity is higher in the natural forest because of higher number of species and also due to the more even distribution of abundance among species.
Answer:B: they lower the activation energy of reactions
Explanation: just took the test
<span>Chemistry of Seawater</span>