Choose the word or phrase from the brackets which correctly completes

1.	Choose the word or phrase from the brackets which correctly completes the following statement: On moving from left to right in a given Period, the number of shells ___________________ (remains the same/increases/decreases).
Answer» Choose the word or phrase from the brackets which correctly completes the following statement: On moving from left to right in a given Period, the number of shells ___________________ (remains the same/increases/decreases).

Choose the word or phrase from the brackets which correctly completes the following statement: On moving from left to right in a given Period, the number of shells ___________________ (remains the same/increases/decreases).

Answer»

Choose the word or phrase from the brackets which correctly completes the following statement:

On moving from left to right in a given Period, the number of shells ___________________ (remains the same/increases/decreases).