Major cause of drug addiction among youngsters now a days? ?

Which of the following is true of vegans?

What is the function of reverse transcriptase in retroviruses? a) it uses viral rna as a template for dna synthesis.b) it converts host cell rna into viral dna.c) it translates viral rna into proteins.d) it uses viral rna as a template for making complementary rna strands.

Which person should increase calorie intake due to a lifestyle choice? a. an adult who is often sedentary b.an athlete c.a student getting ready for school exams d.an older woman