Are there human health risks from exposures or overexposure to radio wave radiation?
- Describe the main risks
- Describe common sources of exposures or overexposures.
- Describe a technology, device, or behavior that can be used for protection, or to decrease exposure.
"Need this in clear points"

? you expect us to answer this? ? this is your schoolwork, i don't think we can with this, i think it would considering being

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2