Find out the word pair relation and it the blanks:
Projected aids : Over Head Projector
Activity aids :---------------
ABlack board
BCharts
CTape
DVivarium
Answer:
D. Vivarium
Read Explanation:
A vivarium is an area, usually enclosed, for keeping and raising animals or plants for observation or research. Water-based vivaria may have open tops providing they are not connected to other water bodies.