Question

Which of the following question is best considered as scientific?

A. Who invented Electricity?
B. How long did dinosaurs live on Earth?
C. How many koalas are there in Australia?
D. Does the amount of salt and water affect the temperature at which it boils? ​

Answer 1

The person above me is correct

Answer 2

Answer: D because it can there for be tested and experimented

Step-by-step explanation: