What is the similarity between burning and respiration?
A) Both reactions consume energy.
B) Both reactions involve the combination of carbon with oxygen.
C) Both reactions create oxygen.
D) Both reactions consume glucose.
E) Actually there is no similarity between them.
Question 2
Country X increases its population by 5 per year. How long will it be before its population doubles?
A) It is impossible to answer this without knowing country X's population.
B) 20 years
C) 35 years
D) 10 years
E) 14 years