Opposite of 'end'

(a)  

                       Look at the image to guess the word         

I am a word which starts with a 'D'

(Hint: Look at the space between two locations)

I help to check data (a)  

To speak up is to have a

(Hint: I start with the letter 'V')

We live in a city, but some stay in a (a)  

I am a form of measure

i _ _ h e s

(a)  

A small river

s _ r _ a m

(a)