Waec Model Questions Vol1 2018 Biology Question 48

Practice objective / multiple choice question 48 from the 2018 Waec Model Questions Vol1 Biology examination.

Waec Model Questions Vol1 2018 Biology Objective / Multiple Choice Medium Difficulty
Question 48 WAEC_MODEL_QUESTIONS_VOL1 • 2018 • BIOLOGY • objective

The diagram shows the human respiratory system. Each alveolus is approximated as a sphere with an average radius of 0.1 mm. The total number of alveoli is 480 million. Calculate the total inner surface area of all alveoli in square meters, rounding to the nearest whole number.

Answer Options

A. 120
B. 30
C. 6
Correct Answer D. 60
Correct Answer
D
Correct Option:
60

About This Question

This is Waec Model Questions Vol1 2018 Biology Question 48. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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