3 sites to earn money with survey legit

whats are surveys

surveys are frequently asked question in McQ type 
 by organizations to know the reviews  of people
 . and they pay to for that. and other company want to
know review of people about their product and service
that what people think. so give your openion
and also earn money. 

earn money by surveys

cashcrate.com
inboxdollar.com
ipoll.com

just make a account sign up verify your account 
t from your email inbox. and start doing survey. you
will be given limited numbers of survey to complete.
 and there is no registration fee. increase your 
earning by your referrals.ipoll give to 5$ free to signup.
they also offer referral program . make more referrals
and earn more money .