Question

Which question could be tested in a scientific manner?

What causes some people to be color-blind?
Why should people be nice to other people?
Why is the color purple better than the color red?
What are the best shoes to wear when exercising?

Answer 1

 it is defeinitley what causes people to be clolor-blind

Answer 2

The correct answer is option A which is, "What causes some people to be color-blind?"

Explanation:

• The tested in scientific manners means doing experiments and devise an answer by interpreting the result on the bases of scientific studies.
• In testing the cause of color blindness, we may check genetics of color blind people and then answer it.
• But in all other options, we are questing about the psychological and emotional questions of people which can not be tested on the basis of scientific experiments.