What would be the total weight of all humans on Earth combined approximately?
Correct answer: A. 320 billion kg
- A. 320 billion kg
- B. 7 billion kg
- C. 320 million kg
- D. 2 billion kg
Explanation
There are approximately 8 billion people on Earth. If we approximate the average weight to be 40 kg, we come to the approximate value of 320 billion kgs which is close to the actual value of 316 billion kg.
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About Scientific Reasoning
Scientific reasoning evaluates hypotheses through observations, variables, controls, measurements and experimental results. Questions involve identifying independent and dependent variables, recognising a fair test, interpreting tables or graphs, distinguishing evidence from opinion, and deciding whether data supports, rejects or leaves a hypothesis unresolved.
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