Someone plzzz me with these questions you

frequency or wavelenth of em radiation in a vacuum

not moving. pos accel,

an electric circuit

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.