Which of the following pollutants in water causes

Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.

_ c _ d d _ c a _ c b d d b _ a

What should come in place of ? in the given series based on the English alphabetical order?

NBE, JXA, FTW, BPS, ?

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.

HCE, MHJ, ?, TOQ, VQS, WRT

Select the option figure that will replace the question mark(?) in the figure given below to complete the  pattern.(rotation is not allowed)

Select the option that is related to the third word in the same way as the second word is related to the first word.

Airplane : Aviation Kerosene :: Car :

Statements:

Some plants are trees.

All herbs are plants.

Conclusions:

I. Some plants are herbs.

Which of the following letter-clusters will replace the question mark (?) in the given series to make it logically complete?

CXW, EVU, GTS, IRQ, ?

How many pages of book Z did Sania read on Sunday?