Are the following true or false?

Question

1. The difference of two natural numbers is always a natural number.
2. The sum of two natural numbers is always a natural number.
3. The quotient of two natural numbers is always a natural number.
4. The difference of two natural numbers is always an integer.
5. The product of two natural numbers is always a natural number.
6. The ratio of two natural numbers is always positive
7. The quotient of two natural numbers is always a rational number

I think the answers are :
1. T
2. T
3. F
4. T
5. T
6. T
7. T

is this right?

Answer 1

1. The difference of two natural numbers is always a natural number. - False
2. The sum of two natural numbers is always a natural number. - True
3. The quotient of two natural numbers is always a natural number. - False
4. The difference of two natural numbers is always an integer. - True
5. The product of two natural numbers is always a natural number. - True
6. The ratio of two natural numbers is always positive - True
7. The quotient of two natural numbers is always a rational number - True

Answer 2

T
T
F
T
T
T
T I think this answers correct