Which sentence provides evidence that NASA research has positive effects on earth

The statement made at the 50th anniversary of NASA by Administrator Michael Griffin,"We see the transformative effects of the Space Economy all around us through numerous technologies and life-saving capabilities"shows the positive impacts of NASA on the earth

Explanation:

NASA has made numerous contributions to the world.NASA stands for National Aeronautics and space administration.NASA space programs have increased our knowledge of space and have led to the discovery of new planets and galaxies.

NASA is playing an important role in tasks like energy conservation, recycling, etc. It has created many job opportunities also. A Large number of scientific discoveries have been made. It has performed experiments for understanding human health better. Satellites of NASA has helped in taking timely actions on climate change. And most importantly calls on cellular phones could not be made without satellites.

your answer is c) experiments with water vapor showed that elements combine in specific proportions.