Radio waves can be damaging to the human body because they are waves with the most photon energy.
a. true
b. false

Match with o for organic and i for inorganic for each compound

Anton created a chart listing different types of materials. which best complete the chart?

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?