Choose analogous pair - Acoustic : Sound

C. PATHOLOGY : DISEASE

Choose analogous pair - Jupiter : Planet

D. EVEREST : PEAK

Choose analogous pair - Expend : Replenism

C. DEFECT : REJOIN

Choose analogous pair - Equator : Latitude

D. PIGEON : BIRD

Choose analogous pair - Laboratory : Germs

D. OBSERVATORY : PLANETS