What wave is the safest of all the waves in the electromagnetic spectrum? Explain why.

Radio waves.

Explanation:

Radio waves are at the far left of the EMS with a low frequency. Higher frequencies, such as Gama rays, cause more harm than the lower frequencies

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.

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.