C. the writer is revising to eliminate irrelevant information and use better words rather than more words.
"Old time is still a-flying" is an example of a metaphor
Ungrammatical is the correct answer
There are mainly two effects of electric current: Heat effect: Current is dissipated in the form of heat. Heat evolved is directly proportional to the current flowing
Hence, the three effects of electric current are heating effect, magnetic effect and chemical effect.
so your answer is
- magnetic effect
- chemical effect
- electric effect