To grow or reach the next stage in a life cycle is to develop.
Select one:
O
false
true

Asample of silver (with work function ? = 4.52 ev) is exposed to an ultraviolet light source (? = 200 nm), which results in the ejection of photoelectrons. what changes will be observed if: silver is replaced with copper (? = 5.10 ev) more photoelectrons ejected no photoelectrons are emitted fewer photoelectrons ejected more energetic photoelectrons (on average) less energetic photoelectrons (on average)

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

All of the following are part of the biosphere except