Do you think that the environmental factors like the family income and parental education affect students' intelligence? If yes, how?

Every single human being is intelligent; the family income or parental education, so as their personal experiences may affect their attention and learning skills, which means they can have all these issues on their mind while they are in the classroom and may be hard to catch their attention during the class, but that's understandable and reasonable, but those problems or situations have nothing to do with their capacity to learn and get knowledge; as teacher we must find a way to turn the class more attractive and fun to help them ignore those thoughts, at least for a while, but also to help them how to get rid of them with kindness and lots of patience. 

YES.

OPEN MIND WORKS LIKE A PARACHUTE.

IF PARENTS INCOME IS LESSER THEY WILL BE AFFECTED WITH FAMILY ISSUES AND POVERTY. POVERTY IS A PROBLEM FOR PEOPLE FROM ECONOMICALLY BACKWARD AND MIDDLE-CLASS FAMILIES.

THE STUDENT MAY BE INTELLIGENT AND TALENTED BUT IF IT IS SUPPRESSED BY ECONOMIC AND SOCIAL ISSUES.T HEN THERE IS NO USE OF IT.

TALENT IS LIKE A SAPLING IT NEEDS TO BE NURTURED BY THE WORLD BY GIVING ALL FACILITY FOR THE STUDENTS IRRESPECTIVE DISCRIMINATION.