Find the effects or the answer
About 93 million miles or 150 km or 8 light minutes (don't know what that means)
Answer:
To test the presence of protein in the food substance which gives a blue-to-purpule colour
The solar system is considered a natural system because it was made and controlled by natural forces, meaning, it was never influenced with human creations. It is considered as one of the products of the phenomenon of the physical world. Hope this answer helps you.