Assertion (A): Diatoms are used in the filtration of oils and syrups.
Reason (R): Diatoms have cell walls embedded with silica.
In the light of above statements, choose the correct option:
1
Both A and R are true and R is the correct explanation of A
2
Both A and R are true but R is NOT the correct explanation of A
3
A is true but R is false
4
A is false but R is true