1
The gaseous envelope surrounding the earth _______.
2
A community of organisms interacting whit one another and whit the is wich they live -
3
The plant component of plankton w funghich includes bacteria and yeast _____ shrink.
4
The smallest part of an element that can take part a chemical reaction______.
5
Jan abnormality of the eye caracterized by opaque lenses ________.
