True or False 1. Both negative and positive feedback works in a loop.

2. Negative feedback is bad for your body.

3. Feedback loops are open systems of information.

4. There are feedback systems found in the environment and mechanical systems.

explanation:

the sun shines white and black light to our planet. the white light has all the colors in it. in our upper atmosphere, we have dust particles and oxygen molecules. the white light meaning all of the colors in a rainbow shines through the upper levels of the atmopshere and the blue light scatters across the entire planet. that is why our sky is blue.