Water molecules form into water droplets by clinging to dust or other small particles suspended in the atmosphere, forming clouds through the process
a) transpiration
b) evaporation
c) condensation

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents

The earth's oceans are made up of chlorine, and trace elements. a) carbon, oxygen b) oxygen, silicon c) hydrogen, oxygen d) nitrogen, oxygen

To confirm when to exclude children from school it’s recommended that you refer to guidelines from which of the following organizations