Situation No. 1. Joey is about to start working on his experiment about plant cell using a compound microscope. He noticed that one of the objective lens is
missing and the course adjustment knob is not working. The eyepiece lens is
also broken.

Ithink the answer is pollution in the air steel made of iron and carbon

B. nuclear reactions could first occur.

According to arrhenius theory of acid and bases, an acid is a proton donor, while base donates hydroxyl ions. further, acid and base reacts to form salt and water.consider following example.hcl    +      h2o          →      cl-          +      h3o+here, hcl has donated a proton, hence it is an acid.now consider following reactionhcl      +      naoh            ↔      nacl      +        h2oin this reaction, hcl donates proton, hence it is acid. on other hand, naoh donates hydroxyl ion (i.e. hence it is a base.