A2-cm-thick piece of cardboard over a radiation source would be mosteffective for protecting against which type of radiation? o a) betao b) x-rayo c) alphao d) gamma

I believe the answer is C) Alpha radiation.

b. acid is the correct answer @jayxboof all social media

acid : acids are those which accepts an electron-pairs.

base : bases are those which donates ab electron-pairs.

alkali : it is a base that dissolves in water. it is basically a base and the ph greater than 7.

hydroxide ion : it is a poly-atomic ion which is negatively charged.

the answer is 1 i believe