Smog is produced by using which of the energy sources:
a) Wind
b) Water
c) Fossils fuels
d) Sun
The organ that is made up of air carrying tubes and tiny sacs:
a) Brain
b) Lungs
c) Stomach
d) Diaphragm
Gas is exchanged in the alveoli by the process of:
a) Facilitated diffusion
b) Simple diffusion
c) Filtration
d) Active transport
Pedagogy is the study of.
a) Curriculum development
b) Classroom management
c) Individual differences
d) Teaching method
