Which statement is correct from the given below:

 

 

1. Ostrich is the flight bird from America
2. Rhode Island red, white leg horn, Anoka are the foreign varieties of livestock.
3. Murra species give up to 6 liters of milk per day.
4. The hormones used to the cattle for Yeilding high quantity of milk, settle down in our body and cause diseases like early reaching of puberty.