Question : Which of the following is a fish?

Option 1: Sliver fish

Option 2: Star fish

Option 3: Dog fish

Option 4: Cuttle fish

Question : If $W_{1}:W_{2}= 2:3$ and $W_{1}:W_{3}= 1:2$, then $W_{2}:W_{3}$ is:

Option 1: 3 : 4

Option 2: 4 : 3

Option 3: 2 : 3

Option 4: 4 : 5

Question : If 2A = 3B and 3B = 2C, then what is $A:B:C$?

Option 1: $3:2:3$

Option 2: $2:3:2$

Option 3: $1:3:1$

Option 4: $2:3:4$

Question : Select the INCORRECTLY spelt word.

Option 1: Aquatic

Option 2: Notorious

Option 3: Centinarian

Option 4: Mercenary

Question : Which of the following can degrade detritus into simpler inorganic substances?

Option 1: Lichens

Option 2: Fungal enzymes

Option 3: Algae

Option 4: Phytoplankton