Question

question 19 1 pts which of the following statements is true? once a hypothesis has been proposed, it can never be challenged. the scientific method or process can help people make informed medical and environmental decisions. if properly designed, experiments always prove hypotheses to be wrong. a valid scientific hypothesis is self - evident and does not need to be tested by experimentation.

Explanation:

A hypothesis can be challenged as new evidence emerges. Experiments can prove hypotheses right or wrong, and a valid scientific hypothesis needs testing. The scientific method helps in making informed decisions in various fields like medicine and environment by providing a structured approach to understanding phenomena.

Answer:

The scientific method or process can help people make informed medical and environmental decisions.